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ddz Uf'f.t^s
l^arbarlr College l.ifarars
FROM THK
UNITED STATES GOVERNMENT
. LocuCkt OAui, n JLatLctaL ^
AOUUAU.
SCIENCE CENTER LIBRARY
r
' >
DEPARTMENT OF COMMERCE AND LABOR
r.-COAST AND. GEODETIC SURVEY. '1 '<^C.«.)
O. H. TITTMANN, Superintbndbnt
UNITED STATES
MAGNETIC TABLES AND MAGNETIC CHARTS
FOR 1905
BY
L. A. RAUER
Inspector of Magnetic Work and Chief of Division of
Terrestrial Magnetism
WASHINGTON
GOVERNMENT PRINTING OFFICE
1908
a-jtv (.111.05
/
CONTENTS
, g Page.
General Statement ._ _ _ 7
Tabi^e I: Observed Magnetic Elements in the United States and Contiguous Countries and the
Values Reduced to January i, 1905 11
Explanatory remarks 13
Distribution of magnetic stations in the United States to the end of 1906 14
Number of magnetic results tabulated 14
Abbreviations used to designate source 15
Miscellaneous abbreviations 17
United States.
Alabama 18
Arizona • i8
Arkansas 20
California 21
Colorado ' 23
Connecticut 24
Delaware 25
District of Columbia 25
Florida 25
Georgia 26
Idaho. 27
Illinois 28
Indiana _ 29
Iowa 29
Kansas 30
Kentucky 32
Louisiana 33
Maine 34
Maryland 35
Massachusetts 38
Michigan 39
Minnesota 41
Mississippi ^ 42
Missoiu-i ' 43
Montana 45
Nebraska 46
Nevada 47
New Hampshire 48
New Jersey 49
New Mexico 1 49
New York 51
North Carolina 52
North Dakota 54
Ohio 55
Oklahoma 5^
Oregon 57
Pennsylvania 5^
Rhode Island 59
. South Carolina 60
South Dakota 60
3
4
CONTENTS.
Table I: Observbd Magnetic Elements in the United States and Contiguous Countries and the
Values Reduced to January i, 1905 — Continued.
United States — Continued. Page.
Tennessee 6i-
Texas _ 62
Utah 65
Vermont _ 66
Virginia _ __ 66
Washington 68
West Virginia 69
Wisconsin _. 70
Wyoming •_ 71
Contiguous Countries.
British North America.
Group I. — South of parallel 52** N. and between meridians 60** and 75® W 72
Group II. — South of parallel 5 2** N. and between meridians 75** and 90® W 74
Group III. — South of parallel 5 2** N . and between meridians 90® and 105° W ' 77
Group IV. — South of parallel 52® N. and between meridians 105® and 120** W 79
Group V. — South of parallel 52® N. and west of 120® W _ 81
Mexico 82
W^est Indies and Bahama Islands, north of Kingston and west of 69® W 86
Table II: Magnetic Observations on Coast and Geodetic Survey Vessels 89
Explanatory remarks 91
Atlantic Ocean, north of 15° N 91
Gulf of Mexico and Caribbean Sea 94
Pacific Qcean, north of 15** N 94
Table III: Secular Change in the Magnetic Declination, 1750-1905 97
Introductory remarks. 99
Explanatory remarks _ 100
Lines of Equal Annual Change in the Magnetic Declination for 1905 107
Table IV: Secular Changes in Declination, Inclination, and Horizontal Intensity, 1840-1905 109
Secular Motion Curves iii
Horizontal Intensity Secular Variation Curves _ 114
Table V: The Magnetic Elements and Magnetic Components for each Degree op Latitude and
Longitude on January i, 1905, for North America, prom 17® N. to 49** N 121
Explanatory remarks 123
Magnetic Charts 151
Methods of Construction _ 153
ILLUSTRATIONS.
Pace.
Pig. I . Curves showing secular change in magnetic declination and inclination at London, Boston, and Baltimore . 112
Chart i . Lines of equal magnetic declination and of equal annual change In pocket.
2. Lines of equal magnetic inclination and of equal annual change In pocket.
3. Lines of equal magnetic horizontal intensity and of equal annual change . In pocket.
4. Lines of equal magnetic vertical intensity .-In pocket.
5 Lines of equal magnetic total intensity J -In pocket.
6. Magnetic meridians . In pocket.
7. Secular motion curves and horizontal intensity secular variation curves. >_ In pocket.
5
UNITED STATES MAGNETIC TABLES AND MAGNETIC CHARTS FOR JANUARY 1, 1905.«
By L. A. Bauer,**
Inspector of Magnetic Work and Chief of Division of Terrestrial Magnetism,
GENERAL STATEMENT.
The present publication portrays the state or condition of the Earth's magnetic forces in the
United States for the date January i , 1905. It accordingly contains tables of the observed magnetic
elements, as far as available, and their values when reduced to this common epoch. There are
furthermore given graphical representations of the actual distribution of the magnetic elements —
declination, dip or inclination, horizontal component of the total intensity of the Earth's magnetic
force, the vertical component, and also the total intensity. It has also been found instructive to give
a chart of the ** magnetic meridians" showing the actual direction assumed by a compass needle at
various points in the United States. Diagrams (Chart 7) are likewise added exhibiting the principal
phenomena resulting from the progressive or '* secular " changes experienced with time by the Earth's
magnetism.
Sir John Herschel aptly says :
"The configuration of our globe — the distribution of temperature in its interior — the tides and
currents of the ocean — the general course of the winds and the affections of climate — whatever slow
changes may be induced in them by those revolutions which geology traces — yet remain for thou-
sands of years appreciably constant. * * * But the magnetic state of our globe is one of swift
and ceaseless change. A few years suffice to alter materially, and the lapse of half a century or a
century to obliterate and completely remodel the form and situation of those lines on its surface
which geometers have supposed to be drawn in order to give a general and graphical view of the
direction and intensity of the magnetic forces at any given epoch."
This quotation sets forth admirably the reasons why it is necessary to issue revised magnetic
charts at intervals of five or ten years. But in addition to the changes caused by the secular varia-
tions of the Earth's magnetism there are also those resulting from additional data acquired since
the date of the previous charts. Owing to the active and renewed interest shown in magnetic work
at present almost everywhere the accumulation of fresh material is advancing at a most satisfactory
pace.
The improvements in the present set of magnetic charts have accordingly resulted both from
the acquirement of the large amount of recently observed data in the United States and from the
increased knowledge of the secular change and the resulting correction necessary to refer an obser-
vation to the date January i, 1905.
In round numbers it may be said that the three magnetic elements (declination, dip, and force)
have been observed at about 3,300 uniformly distributed points, about two-thirds of this number
having been occupied by the observers of the Coast and Geodetic Survey during somewhat over seven
«This supersedes the "United States Magnetic Declination Tables for 1902," except the first one hundred pages,
and all of Appendix 4, Report for 1906 ("Distribution of the Magnetic Declination in the United States for January
1 1 i905» with Isogonic Chart and Secular Change Tables"), and takes the place of the proposed publication referred to
on page 213 of that appendix.
ft Resigned September i, 1906. [The major part of the work involved in this publication had been completed at
date of resignation, but completion had to be deferred until the determination of the secular variation corrections
had reached the desired degree of certainty.]
7
8 1 . MAGNETIC TABLES AND CHARTS FDR 1905.
years — May i, 1899, to September i, 1906, when the magnetic operations of the Survey were in the
writer's charge. The great increase in the number of stations occupied annually since 1899 was
due to enlarged appropriations making it possible to increase the observing force and to acquire
faciUties not possessed before. Thus, with the aid of data from magnetic observatories established
at Cheltenham (Maryland), Baldwin (Kansas), Sitka (Alaska), Honolulu (Hawaii), and Vieques
(Porto Rico) it was possible to reduce the time required to obtain satisfactory results at any one
station. In consequence it is now possible to occupy from two to three times as many stations in
any given time as before 1899, without any sacrifice in accuracy.
To satisfy the practical demands in those parts where it is still found convenient and economical
to use the compass in land surveying, the points of observation were permanently marked and either
true meridian lines established or true bearings of well-defined terrestrial objects were determined.
This necessitated at least partial reduction of the observations in the field — a precautionary meas-
ure which has furthermore been found advantageous, enabling the observer to detect errors while
still on the ground. For these reasons and because of the time necessarily spent in traveling or
lost owing to inclement weather, the number of stations completed per month varied from eight to
sixteen.
The stations are at present, on the average, about 31 miles apart; or, we may say, there is, on the
average, one station for every 973 square miles. Further information regarding the distribution of
the stations is given farther on.
Because of the large amount of accurate magnetic data available for the United States it was
possible for the first time to construct the magnetic charts and to compile the accompanying
tables based upon strictly reliable and homogeneous data. Heretofore it was necessary for the
construction of the isogonic charts** to depend very largely upon data secured from miscellaneous
sources, the precise value of which could not always be safely gauged. The previous isoclinic and
isodynamic charts '' had. to rest upon even more slender material. Now, however, the charts of the
various magnetic elements all depend upon practically the same nuniber of observations made at
the same points. They are accordingly strictly comparable and various investigations, such as the
study of the manifold irregularities in magnetic distribution, may be more successfully pursued
than was hitherto possible.
During the period 1 899-1 906 the determination of instrumental errors received special attention,
these errors being more frequently inherent in magnetic instruments than was generally supposed.
All instruments used by the Coast and Geodetic Survey and cooperating organizations were therefore
studied carefully and intercompared as frequently as possible, and the corrections thus derived on
certain so-called "Standard" instruments were applied to the observed results. Furthermore, as
far as the means permitted, the endeavor was made to multiply stations in order to eliminate as
effectually as possible station errors, due to local disturbance, which frequently far exceed thfe obser-
vation errors.
Another feature enhancing the value of the present charts is the fact, that in addition to the
observations on land, magnetic work at sea was begun in 1903 on the Coast Survey vessels. There
were hence available the magnetic results obtained by these vessels along our coast during the four
years 1 903-1 907, as well as the results obtained by the Carnegie Institution of Washington along the
Pacific coast. Moreover, use was made of the results of numerous observations on land made by
that institution in Canada, Mexico, Central America, and the West Indies, and also data received
from the Mexican Government and from the Canadian Government, as elsewhere acknowledged.
The present magnetic charts apply to the date January i, 1905. A date prior to the year of
publication rather than a subsequent one, e. g., January i, 1910, was selected in order to be able to
construct the magnetic charts with greater accuracy. Had they been constructed for 1 910, it would
have been necessary to estimate the amount of secular change in advance of observations. Now
the past ten years have shown that this is a hazardous procedure on account of the unexpected and
complicated features of the secular variation which were disclosed by the frequent occupations
of the same stations. It was found that the secular variation had not progressed in accordance
oThe last published prior to the one for 1905 was for 1902 (United States Magnetic Declination Tables for 1902).
& The last published were for 1900 (C. & G. S. Report, 1897, App. i).
GENERAL STATEMENT. 9
with the predictions from the empirical formulae established earlier. Since the magnetic charts
for January i, 1905, are virtually based upon observations almost to the end of the year 1907, the
errors due to secular variation reductions have been reduced almost to a minimum, especially as
the epoch selected falls within the period during which the vast majority of the observations utilized
were obtained. Future improvements of the charts will therefore be due primarily to additional
material rather than to increased knowledge of the secular change. Furthermore, owing to the
methods pursued in this country, the secular changes are being determined from year to year, so that
it is readily possible to refer a result scaled from the magnetic charts for 1905 to the present time.
It is the intention of the Carnegie Institution to refer its magnetic charts likewise to the same
period, January i, 1905.
The United States Magnetic Tables and accompanying charts receive added interest fi;om the
fact that as they embrace an area equal to nearly one-fifteenth of the entire land area of the globe,
or nearly equal to that of Europe, they at present cover the largest land area for which a gen-
eral magnetic survey, on a homogeneous basis and with the requisite accuracy, has been made.
This statement applies not only to the actual distribution of the magnetic forces or magnetic elements
in the United States, but likewise to the study of the secular changes.
It had been the original intention to include in this publication a discussion and analysis of
the United States magnetic field and of its secular variations. However, owing to the urgent
demand for a new edition of the "United States Magnetic Declination Tables," originally issued
for 1902, the two editions of which are now out of print, it became desirable to publish the new
tables as soon as possible and to defer the discussion and analysis to some future date. The text
in the present publication is therefore confined to such remarks and explanations as are necessary
to set its contents clearly before the reader.
The writer takes great pleasure in acknowledging the substantial assistance rendered in various
ways by the present inspector of magnetic work, Mr. R. L. Faris, and by the computers of the Division
of Terrestrial Magnetism, Messrs. D. L. Hazard, W. E. Beck, and H. M. Armstrong.
XABLK I.
THE OBSERVED MAGNETIC ELEMENTS IN THE UNITED STATES
AND CONTIGUOUS COUNTRIES AND THE VALUES
REDUCED TO JANUARY 1, 1905.
EXPLANATORY REMARKS.
Table I contains the observed magnetic elements (declination, inclination or dip, and the hori-
zontal intensity or horizontal component of the Earth's magnetic force) in the United States find
also in the contiguous countries (British North America, Mexico, and West Indies) within the area
covered by the magnetic charts of the United States. For each station the latitude and longitude
are gi'fen to the nearest minute of arc, the date to the nearest tenth of a year, the three observed
magnetic elements as already stated, and the values of the same elements reduced or referred to
January i, 1905 (1905.0), a'hd finally the source. The horizontal intensities are given in C. G. S.
units. In a few instances the total intensity was observed and the horizontal intensity computed
from the observed inclination and total intensity. The column *' Source" will enable anyone with
the aid of the key as explained in the '* Abbreviations'* below to determine the institution, organ-
ization, or observer responsible for the observation, and also where the same is published or where
it was obtained. The entries for each State are arranged in the order of increasing latitudes
except when that arrangement would separate stations in the same locality.
With but few exceptions (in the declinations), only such results are given as were obtained
with approved instruments. In a few localities where the distribution of the magnetic elements is
very irregular and where observations were scarce it was necessary to utilize some of the miscel-
laneous magnetic declinations tabulated ^n the publication designated below as *'CS.d;" but these
results are not given in the following tables. Corrections on account of diurnal variation were
applied to the observed declinations in nearly all instances, and where this was not done it was
because of lack of sufficient information in the publication from which the result was obtained.
During recent years it has been the practice of the Coast and Geodetic Survey to refer an observed
declination to the mean of the month in which the obser\'ation was made, utilizing the monthly
tabulations obtained at its magnetic observatories. As far as this organization is concerned, the
magnetic elements as tabulated have been referred to standard instruments with the aid of numerous
intercomparisons both in the field and at the observatories. It has not been found worth while in
the construction of magnetic charts to undertake the tremendous labor required to apply to the
observed inclinations and intensities corrections on account of diurnal variation, which are, in general,
on the order of the error of observation and certainly much less than the ''station error" due to the
irregular distribution of the Earth's magnetism, well-nigh universally prevalent over land areas.
Some investigations by the Department of Research in Terrestrial Magnetism of the Carnegie Insti-
tution of Washington indicate that the Coast and Geodetic Survey standard magnetometer for
horizontal intensities gives results about one-thousandth part of the observed quantity too high on
an "International Magnetic Standard." The results as tabulated, obtained since about 1903, may
therefore require to be diminished by this amount (^Jjj^H); for the present purposes, however, it
has been deemed best not to apply this correction, especially as it also is on the order of error of
observation and considerably smaller than the station error.
For any one station only the most recent results are in general presented, with a view of making
the errors in reducing the values to 1905.0 as small as possible. Only when different stations in
the same locality were occupied by the same organization, or the same station by different organi-
zations, at different periods, and with different instruments, will more than one entry be found for
the same station or locality. However, as complete a compilation as possible was made for each
station at which the magnetic elements have been observed at various times, and these compilations
were used to perfect the "tables of reductions to 1905.0."
Table I is a compilation of all reliable magnetic observations since about the year 1850, though
in a few cases it was deemed desirable to include the values since 1840, which is about as far
13
14
MAGNETIC TABLES AND CHARTS FOR 1905.
back as fairly satisfactory secular variation tables for the three magnetic elements can be established.
However, the great majority of the observations — about two- thirds — have been secured since the
formation in 1899 of a division in the Coast and Geodetic Survey, devoted exclusively to magnetic
work. Since then the funds provided have made it possible to occupy annually about 300 to 400
stations, besides obtaining magnetic results at sea and maintaining five magnetic observatories.
Hence the present magnetic charts are practically based upon material secured during the seven
years 1 899-1 906, and are therefore subject to comparatively small error on account of imperfect
knowledge of secular changes. As a matter of fact, the secular changes were deduced with the aid
of observations made up to the end of the year 1907, so that the epoch selected, 1905.0, falls within
the interval during which the majority of the results was obtained.
For the methods of observation used in the Coast and Geodetic Survey, and for other details,
descriptions of stations, etc., the reader is referred to the Annual Reports of the Superintendent of
the Coast and Geodetic Survey. It is only possible to state here briefly that the attempt is made
to secure the declination and the inclination within an absolute accuracy of about two minutes of
arc and the horizontal intensity within about one-thousandth part.
The following summary will give some idea as to the general distribution of the stations
occupied. Of the stations in the United States for which the magnetic elements are tabulated
(3,311 in all), 2,869 stre Coast and Geodetic Survey stations. A number of the stations in the con-
tiguous countries were likewise established by the same organization. It will be seen thai for the
United States (exclusive of all outlying possessions) the total number of results tabulated for each element
approximates about 3,000 and that there is, on the average, one magnetic station per 9J3 square miles.
Distribution of magnetic stations in the United States to the end of igo6.
[N«-:i:i a'j3r of square miles per magaetio station.]
state
N
state
N 1
state
N
Alabama
1,306
Maine
688
Ohio
419
Arizona
1,027
Maryland
90 1
Oklahoma
2,012
Arkansas
I. 417
Massachusetts
173 I
Oregon
1.334
California
1,228
Michigan
701 1
Pennsylvania
551
Colorado
1,823
Minnesota
1,895
Rhode Island
114
Connecticut
151
Mississippi
1,115 1
South Carolina
650
Delaware
158
Missouri
463
South Dakota
2,353
Florida
826
Montana
2,519
Tennessee
765
Georgia
929
j Nebraska
1,230
Texas
1,460
Idaho
2,924
1 Nevada
1,757 ,
Utah
2,296
Illinois
1,574
New Hampshire
716 1
Vermont
736
Indiana
I. 173
New Jersey
174
Virginia
363
Iowa
1,273
New Mexico
1,679 1
Washington
760
Kansas
714
New York
572 '
West Virginia
427
Kentucky
546
North Carolina
443
Wisconsin
1,192
Louisiana
518
North Dakota
2,145
Wyoming
2,083
Number of magnetic results tabulated.
United States (48 States and Territories)
British North America (South of 52° N. and West of 6o*» W.)
Mexico
West Indies
Total
1
Number of
stations
Declinations
Inclinations
Intensities
3,311
575
201
62
3,207
488
230
61
2,862
328
175
28
2,777
298
172
25
4,149
3,986
3,393
3,272
Special acknowledgment is due Seiior Felipe Valle, Director Observatorio Astronomico Nacional
Mexicano, Tacubaya (D. F.), Mexico, for transmitting in MS. the results of magnetic observations
MAGNETIC ELEMENTS IN THE UNITED STATES. 15
made under his direction at seventy stations in 1906-7, by Manuel Moreno y Anda and Abel Dias
Covarrubias, and to Dr. W. F. King, Chief Astronomer, Ottawa, Canada, and to Prof. R. F.*Stupart,
Director, Meteorological Service, Toronto, Canada, for results of magnetic observations in British
North America made under their direction during 1907. Acknowledgment should also be made of
the service rendered by the Carnegie Institution of Washington through its Department of Terrestrial
Mdgnetism in making observations in the West Indies, Mexico, Central America, and British North
America in 1906-7, with the aid of which the secular change tables could be amplified and perfected,
and also for furnishing the results of observations made at sea.
Care has been used in securing correctness as far as possible in the entries in the table. Only
one who has undertaken similar compilations can appreciate the amount of labor, of the most pains-
taking and exacting kind, involved in such work, and realize that absolute correctness can only be
hoped for after repeated revisions. The reader who may detect errors will render appreciative service
by promptly bringing them to the attention of the Superintendent of the Coast and Geodetic Survey.
Abbreviations used to designate source.
AA. — Magnetic observations made under the auspices of the Royal Austrian Academy by Karl
Friesach, and originally published in K. K. Akad. d. Wiss., Vienna, vol. 29, 1858. If also published
in previous Coast and Geodetic Survey tables, then additional reference is made accordingly to d
(CS.d), or to do (CS.do), or to di (CS.di), thus AA.d, or AA.do, or AA.di.
BN. — Magnetic observatipns by officers of the British Navy. If the reference be BN.oi, the
result will be found given in the British Admiralty "List of Magnetic Observations * ♦ * dur-
ing the years 1890- 1900," published in 1901. BN.05 would similarly mean the "List of Magnetic
Observations * * * during the years 1900-1905," published in 1905, and BN.07 the "List of
Magnetic Observations for years 1905-6," published in 1907.
CI. — Magnetic observations made by the Department of Research in Terrestrial Magnetism of
the Carnegie Institution of Washington, furnished in MS.
CO. — Magnetic observations made in British North America, generally by Canadian observers
in some official capacity, though occasionally also by others. If the results have already appeared
in previous Coast and Geodetic Survey publications, the reference may be "CO.d,** or "CO.do," or
"CO.dr* (referring respectively to publications "CS.d,'' or "CS.do," or "CS.di"). When they
were furnished in MS., they are simply marked "CO." Some results taken from the Lake Survey
publications (see LS.3E) are designated, "CO.3E."
CO,98, — Magnetic observations made by Messrs. William Ogilvie, Th. Fawcett, E. Deville,
F. W. Wilkins, O. J. Klotz, J. S. Dennis, W. T. Thompson; published by Dr. W. F. King, Chief
Astronomer, in "Annual Report of the Department of the Interior for the year 1898, Ottawa, 1899,
pp. 380-387." [Correction for diurnal variation was applied to the published declinations as far
as circumstances permitted. The horizontal intensities were computed from the observed dips and
observed total intensities.]
CS.d, — United States Coast and Geodetic Survey; Magnetic Declination Tables and Isogonic
Charts for 1902, by L. A. Bauer, 2d edition, Washington, 1903."
CS.o. — United States Coast and Geodetic Survey; The Geographical Distribution and Secular
Variation of the Magnetic Dip and Intensity in the United States [for January i, 1885], by C. A.
Schott, Appendix 6, Report for 1885, Washington, 1886.**
CS.i. — United States Coast and Geodetic Survey; Distribution of the Magnetic Dip and Inten-
sity in the United States for January i, 1900, by C. A. Schott, Appendix i. Report for 1897, Wash-
ington, 1898.**
« The values observed by the Coast and Geodetic Survey prior to 1881 with descriptions of stations will be found
in Appendix 9, Report for 1881, Washington, 1882. However, as some changes have been made at times in the origi-
nally published values, it will be safest to resort to the references given above, viz, "CS.d" for the declinations and
"CS.i" (and occasionally "CS.o") for dips and intensities. Some slight revisions have been made since "CS.d" was
issued and in case a declination is not found in "CS.d" when reference is made to it, then see Appendix i, C. & G. S
Report for 1896, and occasionally also Appendix 11, Report for 1889.
l6 MAGNETIC TABLES AND CHARTS FOR 1905.
CS,2, — United States Coast and Geodetic Survey; Magnetic Dip and Intensity Observations,
Januaryri897, to June 30, 1902, by D. L. Hazard, Appendix 6, Report for 1902, Washington, 1903.
CS.do; CS.di; CS.d2, — Declination results will be found in CS.d and dip intensity results in
CS.o, CS.i andCS.2.
CS.3. — United States Coast and Geodetic Survey; Results of Magnetic Observations made by
the Coast and Geodetic Survey between July i, 1902, and June 30, 1903, by L. A. Bauer, AppenJlix
5, Report for 1903, Washington, 1904.
CS.4, — United States Coast and Geodetic Survey; Results of Magnetic Observations made by
the Coast and Geodetic Survey between July i, 1903, and June 30, 1904, by L. A. Bauer, Appendix
3, Report for 1904, Washington, 1904.
CS.3. — United States Coast iand Geodetic Survey; Results of Magnetic Observations made by
the Coast and Geodetic Survey between July i, 1904, and June 30, 1905, by L. A. Bauer, Appendix
3, Report for 1905, Washington, 1905.
CS.6. — United States Coast and Geodetic Survey; Results of Magnetic Observations made by
the Coast and Geodetic Survey between July i, 1905, and June 30, 1906, by L. A. Bauer, Appendix
3, Report for 1906, Washington, 1906.
CS.7. — United States Coast and Geodetic Survey; Results of Magnetic Observations made by
the Coast and Geodetic Survey between July i, 1906, and June 30, 1907, by R. L. Paris, Appendix
5, Report for 1907, Washington, 1907.
CS.8. — United States Coast and Geodetic Survey; Results of Magnetic Observations made by ;
the Coast and Geodetic Survey between July i, 1907, and June 30, 1908, by R. L. Faris, Appendix
3, Report for 1908, Washington, 1908. !
CY.S3; CY.d; CY.di.—See ''JL.83.'' ,
EL. — Magnetic observations by Prof. E. Loomis, published in "Transactions, American Philo-
sophical Society, Vol. VIII, 1843." Reference may be made to "CS.di," thus, e. g., EL.di. 1
FN. — Magnetic observations by officers of the French Navy, e. g., by Lieut. Louis Mottez,
Annales hydrographiques, vol. 2, 1893.
JL. 83. — Diary of a Magnetic Survey of a Portion of the Dominion of Canada chiefly in the
North-Westem Territories executed in the years 1842-1844 by Lieut. J. H. Lefroy. London, 1883.
[The results as given in the following tables are in accordance with the revised results given by Lefroy
in his " Diary," and hence differ at times from those contained in the earlier tables of the Coast and
Geodetic Survey, which were based upon the figures given in Sabine's '* Contributions," No. XIII,
1872. It should be noted that Lefroy's own table (No. XIX, "Diary" pp. 166-170) contains errors I
as revealed by the text. The values of the horizontal intensities were recomputed from the dip and
total intensity results given by Lefroy. The declinations, as remarked by Lefroy himself, are not 1
in general wholly satisfactory, individual results at the same station differing some times by 1° and
more. Doubtless on this account he made no attempt to apply any correction for diurnal variation; j
the results are accordingly given to the nearest whole minute, although they may be in error by many j
minutes. Some declinations observed on *'term days," not contained in Lefroy's "Diary," have
been taken from the reference designated above as "CS.d;" they will be found entered as "JL.d."
Some results by Lieut. C. Younghusband will be found designated as "Cy.83" (if taken from
Lefroy's "Diary") or "CY.d" or CY.di " (if taken from "CS.d" or "CS.di ").]
LS.3E or LS. — Magnetic Observations by the United States Lake Survey. [The results of 1897
were originally published in the Annual Report of theChief of Engineers for 1898, Appendixes DDD
and EEE. For summaries of the obser\^ations up to 1905, see Appendix EEE, Report of the Chief
of Engineers for^i905. Bulletin No. 17 — Survey of the Northern and North- West Lakes; Corps of
Engineers, 1907, contains maps of the Isogonic Lines and the Lines of Equal Dip for 1907 over the
Great Lakes, as also the magnetic results of a special examination of the Lake Superior region. All
this information was utilized as far as possible. A MS. table courteously furnished by the Lake |
Survey contained the results of observations made by Mr. Russell in 1904-5-6. The values of hori- |
zontal intensity for 1904, published in the Annual Report for 1905, quoted above, were found to have
been increased in the MS. table by iJ4 per cent, thus bringing them in better accord with the Coast
MAGNETIC ELEMENTS IN THE UNITED STATES. 17
and Geodetic Survey observations. As the results for 1905-6 have not appeared in any publication
as yet, they are marked simply LS. ; it was necessary to diminish the horizontal intensity values for
these two years by 2 per cent in order to harmonize them with other observations at the same
stations.]
LSAi. — Magnetic observations by United States Lake Survey; tabulated in publications
*CS.d"and"CS.i."
MLdi. — Results of Magnetic Observations made in connection with the Greenland Expedition
of 1896, under the charge of Prof. A. E. Burton, by G. R. Putnam (Assistant, Coast and Geodetic
Survey). Report of the Superintendent of the Coast and Geodetic Survey for 1897, Appendix
No. 5, pp. 287-295. [The results will also be found in "CS.di."]
MO. — ^Magnetic observations by Mexican observers or under the auspices of the Mexican Gov-
ernment. The observations 1906-7 were made by Messrs. Abel Dias Covarrubias and Manuel
Moreno y Anda under the superintendence of the Director (Felipe Valle) of the National Observatory
of Mexico and were communicated in MS. A few observations occur which were made previously
by the Mexican observers, Manuel Moreno y Anda or Valentin Gama, and if already published the
reference will be found in the footnotes.
MS. IL — Second Report on Magnetic Work in Maryland, by L. A. Bauer. Vol. V, Part I,
Maryland Geological Survey, 1905 [Separate appeared in 1902].
NA,di. — Records and Results of Magnetic Observations made at the charge of the "Bache
Fund" of the National Academy of Sciences from 1871 to 1876, under the direction of J. E. Hilgard,
Appendix 14, Report of the United States Coast and Geodetic Survey for 1882, Washington, 1883.
[Mr. J. E. Hilgard was at the time Superintendent of the United States Coast and Geodetic Survey;
the observers were T. C. Hilgard, F. E. Hilgard, and J. M. Poole. The results are also contained in
the references designated above as *XS.d," "CS.o," and "CS.i."]
NLdi. — Magnetic observations made by Prof. F. E. Nipher, originally published in the Trans-
actions of the St. Louis Academy of Sciences, 1878-1886, and also tabulated in the publications
"CS.d"and"CS.di."
SM. — Observations on terrestrial magnetism in Mexico conducted under the direction of Baron
von MuUer, with notes and illustrations of an examination of the volcano Popocatepetl and its
vicinity by August Sonntag, published by the Smithsonian Institution, i860, Smithsonian Contri-
butions to Knowledge. Additional reference may be made to the previous tables of the Coast and
Geodetic Survey, viz., CS.d, CS.do, or CS.di ; thus SM.d or SM.do, or SM.di.
UE.3E. — Magnetic observations by^United States Engineers. (See LS.3E.)
UN. — Magnetic observations made by or under the auspices of oflScers of the United States Navy.
If no further reference is given, the observations were communicated in MS. When UN.d or UNdo
or UNdi occur, it means that the observations were made by the United States Navy and have been
published in the tables "CS.d," "CS.o," or "CS.i," as the case may be.
Miscellaneous abbreviations.
* — Indicates that a result shows "local disturbance."
R.— River.
Sd.— Sound.
Hbr. — Harbor.
I. — Island.
Ids. — Islands.
Pt.— Point.
53819 — 08 2
i8
MAGNETIC TABLES AND CHARTS FOR 1905.
Table I. — Observed magnetic elements and the values reduced to January i, 190^.
ALABAMA
Observed
Reduced to 100
;.o
Lati-
Longi-
T* ♦ i
station
tude
tude
Date 1
N.
W.ofGr.
1
1
1847.4 i
Decl'n
Incl'n
H. Int.
c.g.s.
.2867
Decl'n
Incl'n
H. Int.
Fort Morgan
/
30 14
/
88 01
/
7 04. I E
/
/
4 05E
/
c. g. s.
.2744
CS.d
Daphne
Mobile
30 36
87 54
1905. 2 1
4 32. 5?
61 08.3
.2689
, 4 32E
61 08
.2690
CS.5
30 41
88 09
1905. 2 1
4 30. 5 H
61 14. 2
.2685
1 4 30E
61 14
.2686
CS.5
Citronelle
31 06
88 14
1905.2
4 33. 3 E
61 43.4
•2655
, 4 33E
61 43
.2656
CS.5
Evergreen
31 26
86 57
1900.4
3 48. 2 E
62 09.9
. 2629
3 48E
62 22
.2608
CS.d2
Ozark
31 29
85 38
1903. I
3 16.0 E
62 20.5
.2628
3 16E
62 25
. 2619
CS.3
Grove Hill
31 42
87 46
1905. 2
4 06.4 E
62 02.6
.2655
4 06E
62 02
.2656
CS.5
Greenville
31 50
86 36
1896. 2
3 46. 6 E
62 18.9
.2634
1 3 34E
62 40
• 2595
CS.di
Lower Peachtree
31 50
87 33
1857.3
6 02.4 E
62 16.8
.2755
3 37E
62 17
.2633
CS.di
Eufaula
31 53
85 08
1903. I
2 39. 3 E
63 04.6
.2547
2 40E
63 09
.2537
CS.3
Troy
31 53
85 57
1903. I
3 18.9 E
62 43.4
•2584
3 20E
62 48
.2575
CS.3
Mount Carmel
32 01
86 21
1892.4
3 39 E
3 20E
.. _-
CS.d
Ethridge
Union Springs
32 05
87 04
1892.4
3 34 E
3 16E
-- --
CS.d
32 09
85 42
1900.4
2 57.4 E
62 48.6
.2594
2 58 E
63 00
.2573
CS.da
Montgomery
32 22
86 18
1900.4
2 47.6 E
62 51.0
.2613
2 48 E
63 02
.2592
CS.d2
Selma
32 27
87 03
1903- I 1
2 57.8 E
62 54.6
. 2610
2 59 E
62 59
. 2601
CS.3
Livingston
32 35
88 II
1903. I
4 39- 3 E
63 10.4
.2585
4 42E
63 15
.2576
CS.3
Opelika
32 37
85 25
1896.3 :
3 02.0 E
63 24.5
.2570
2 52E
63 45
.2531
CS.di
Greensboro
32 44
87 35
1903. I
4 14-7 E
63 37. 2
.2567
4 16E
63 42
.2558
CS.3
DadevUle
32 49
85 45
1905.2
3 02. 2 E
63 48. I
.2532
3 02E
63 48
.2532
CS.5
Centerville
32 56
87 08
1905. 2
3 08. 6 E
64 01.5
.2521
3 08E
64 01
.2522
CS.5
Columbiana
33 "
86 36
1905.2
3 03. 4 E
64 08. I
.2508
3 03E
64 08
.2509
CS.5
Tuscaloosa
33 13
87 33
1905.2
4 26. 4 E
64 17.3
.2502
4 26E
64 17
■ 2503
CS.5
Talladega
33 26
86 06
1905.2 ,
2 52. 4 E
64 17.9
.2483
2 52E
64 18
.2484
CS.5
Birmingham
33 31
86 50
1904.0
2 52.0 E
64 27. 2
.2513
2 53 E
64 29
.2509
CS.4
Fayette
33 41
87 50
1905.2 ^
4 21. 5E
64 31.9
•2499
4 21 E
64 32
• 2499
CS5
Jasper
33 50
87 17
1905.2
4 06.7 E
64 36. 2
.2496
4 06E
6436
.2497
CS.5
Ashville
33 51
86 16
1904.0 1
2 5I.3E
64 53. 1
.2475
2 52E
6456
.2471
CS.4
Oneonto
33 58
86 28
1904.0
2 38. 7 E
64 55. 3
.2474
2 39 E
64 57
.2470
CS.4
Gadsden
34 01
86 00
1904.0 1
2 07. 5 E
65 07. 2
.2463
2 08E
65 09
.2459
.CS.4
Indian Mountain
34 02
85 26
1875.7 ,
4 10. 6 E
65 09.5
.2523
2 42E
65 14
.2458
CS.di
Center
34 10
85 41
1904.0 1
I 56. 6 E
64 57. 4
.2460
1 57 E
64 59
.2456
CS.4
Cullman
34 10
86 50
1900.4
3 18. 2 E
65 17.3
•2439
3 16E
65 26
.2419
CS.d2
Guntersville
34 22
86 21
1903.9 1
2 58.4 E
65 33.6
.2436
2 58 E
65 36
.2433
CS.4
Fort Payne
34 29
85 42
1903. 9
I 38.4 E
65 27.6
.2435
1 39 E
65 30
.2430
CS.4
Russellville
34 31
87 44
1905.2
4 13. oE
65 27.8
.2408
4 13E
65 27
.2409
CS.5
Decatur
34 37
86 59
1900.4
4 130E
65 29. 5
. 2416
4 loE
65 36
.2398
CS.d2
Scottsboro
34 42
86 02
1903.9
3 21.8 E
66 15*3
.2353
3 22E
66 17
.2348
CS.4
Huntsville
34 42
86 35
1900.4
4 02. 2 E
66 03.9
.2384
4 ooE
66 10
.2366
CS.d2
Florence
34 48
87 43
1890.4
4 15- 6 E
65 30.6
.2415
3 43E
65 48
.2375
CSdi
ARIZONA
f
/
/
/
!
c. g. s. 1
/
/
1
c.g.'s. 1
Santa Cruz R.
31
18
jiio 31
1855.4
II
45 E
57 28
. 2844 1
12
09E
57 55
. 2738 1
CS.dit
CS.dr
San Bernardino
31
20
!i09 14
1855.3
II
45 E
57 19
.2883
12
09E
57 43
.2777 ,
Boundary, Sta. 8
31
20
109 15
1892.6
II
56. 9 E
12
13 E
1
CS.d
Douglas
31
20
109 33
1903.4
12
30- 3 E
58 19.4
.2812 j
12
35 E
58 21
.2808
CS.3
Boundary, Sta. 9
31
20
;i09 43
1892. 7
12
23- I E
1
12
40 E
__ __
1
CS.d
Naco
31
20
109 57
1903.2 ,
12
18. I E
57 58.8
. 2830 1
12
25 E
58 00
. 2827 1
CS.3
Boundary, Sta. 10
31
20
no 10
1892.8
12
18.8 E
12
36 E
__ -_
1
CS.d
Boundary, Sta. 1 1
31
20
|iio 34
1892.9 ;
12
04. 5 E
1
12
21 E
__ __
- - _
CS.d
Nogales
31
20
no 56
1903. 2 I
12
44. 9 E
57 56.8
.2815 .
12
51 E
57 58
.2811 1
CS.3
Crittenden
31
35
|iio 44
1903.2 1
12
42.7 E
58 17.3
.2806 1
12
49 E
58 19
.2803
CS.3
Tombstone
31
45
no 04
1903.2
12
16.2 E
58 40. 2
.2819
12
23 E
58 42
.2816
CS.3
Benson
31
58
no 18
1903. 2 1
12
48.9 E
58 53.5
.2773
12
555
58 55
.2770
Si-3
Cochise
32
07
109 55
1903.2
12
45. 8 E
58 47.3
.2791
12
52 E
58 49
.2787
CS.3
Tucson
32
14
110 58
1903.2 1
13
08. 1 E
58 54. 2
. 2783 ;
13
14 E
58 56
.2780
CS.3
Bowie
32
21
109 29
1903.2
12
40. 1 E
59 08. 9
• 2770
12
46 E
59 11
.2767
CS.3
Red Rock
32
35
In I 20
1903- 2
13
24. 8 E
59 31.3
. 2739
13
31 E
59 33
. 2736
CS.3
Wellton
32
40
,114 08
1903-1
13
45. 6 E
58 45. 7
• 2767 1
13
52 E
58 47
.2764
SI-3.
Station 45
32
41
I114 05
1851.0
58 25
1
__
__
58 55
CS.it
Gila Junction
32
43
114 33
1851.0
1903.4
12
50 E
58 30
14
ooE
59 00
CS.dit
Duncan
32
44
!i09 06
12
23. 6 E
59 40. 6
• 2756
12
28 E
59 42
• 2753
CS.3
Mohawk Summit
32
44
113 45
»903. 1 1
13
49-3 E
58 54. 1
. 2762
13
56 E
58 55
• 2759
CS.3
t U. S. & Mex. Bound. Sur., W. H. Emory and T. W. Chandler, observers; Am. Acad. Sc., Vols. V and VI, 1856.
MAGNETIC ELEMENTS IN THE UNITED STATES. 19
Table I. — Observed magnetic elements and the values reduced to January j, 1905 — Continued.
ARIZON A— Continued
Observed
Reduced to iqoc.o
station
Lati-
tude
fu^"
tude-
Date
Source
N.
W.ofGr.
Dccl'n
Incrn
H. Int.
Decl'n
Ind'n
H. Int.
— -
/
/
/
/
c, g. s.
/
/
c. g. s.
Station 44
32 44
113 50
1851.O
-_
58 30
__ __
59 02
CS.it
Yuma
32 44
"4 37
1905. I
14 07. 2 E
58 51.7
•2753
14 07 E
58 52
.2753
CS.5
Solomonsville
32 49
109 38
1903- 3
13 12.8 E
59 34-
.2763
13 18 E
59 36
. 2760
CS.3
Station 43
32 49
113 33
1851.0
._
58 43
__ »_
59 14
S§-'t
Station i
32 50
109 34
185 1.
59 19
__ __
59 55
CS.it
Station 2
32 50
109 37
1851.0
_
59 12
_-_ _
_ - __
59 48
CS.it
Sentinel
32 51
113 13
1903- 2
14 14. 2 E
59 08. 9
.2788
14 21 E
59 10
.2785
CS.3
Casa Grande
32 52
III 45
1903.2
13 35. 6 E
59 24.8
•2755
13 42 E
59 26
.2752
CS.3^
Station 3
32 53
109 44
1851.0 i
_-
59 12
__ -_
59 48
CS.it
Station 4
32 57
109 49
1851.0 '
_-
59 20
-- __
59 56
CS.it
Gila Bend
32 57
112 44
1903- 2
13 40. 1 E
59 09.2
.2757
13 46 E
59 II
•2753
^^'K
Station 42
32 58
113 II
1851.0
59 17
__ _-
59 55
CS.it
Station 20
32 59
no 40
1851.0
12 25 E
59 II
13 07 E
59 48
CS.dit
Station 39
32 59
112 43
1851.0
-_ _-
58 49
_- _«
59 27
£i-"t
Station 38
33 00
112 39
1851.0
_. __
58 53
-- -_
59 31
CS.r-
Station 28
33 01
III 23
1851.0
__ __
59 16
-_ _- '
59 55
CS.r-
Florence
33 02
III 24
1903.2
13 43.5 E
59 .34- I
.2732
13 50 E
59 36
.2729
CS.3
Station 40
33 02
112 55
1851.0
59 16
____
__ -_
59 54
CS.it
Clifton
33 03
109 18
1903.4
II 51. 7E
60 21.3
. 2692
II 56 E
60 23
.2689
CS.3
Fort Thomas
33 03
109 59
1903.2
12 50.5 E
59 41.3
. 2760
12 56 E
59 43
•2757
£^•3
Station 21
33 03
no 46
185 r.o
._
58 59
__ -_
59 38
CS.it
Station 27
33 03
III 16
1851.0
_.
59 20
__ __
59 58
___ _
CS.it
Maricopa
33 03
112 03
1903.2
13 34. 2 E
59 26. 7
.2744
13 41 E
59 28
.2741
£?-3.
Station 5
33 04
109 55
1851.0
59 27
__ --
60 04
CS.it
Station 26
33 04
III II
1851.0
_
59 25
_ _ _ _
60 04
CS.r
r
Station 29
33 04
III 34
1851.0
-.
59 06
_ _ __
59 45
CS.I
Station 19
33 05
no 35
1851.0
-_
59 05
,
__ __
59 44
CS.r-
Station 22
33 05
no 50
1851.0
59 13
--!- -
-- --
59 52
CS.I
Station 6
33 06
no 00
1851.0
_„ .
59 38
_ - _-
60 17
CS.r
Station 24
33 06
in 02
1851.0
59 20
-_ __
59 59
CS.r
Station 23
33 07
no 55
1851.0
59 23
'
__ _ _
60 02
_.._ _
CS.r-
Station 30
33 08
III 44
1851.0
12 52 E
59 06
1
13 52 E
59 45
CS.dit
Station 12
33 09
no 26
1851.0
_ _ - -
59 37
60 16
CS.1I
Station 13
33 09
no 28
1851.0
__ -_
58 58
--
59 37
CS.r
Station 15
33 09
no 31
1851.0
_ _ _ -
59 28
__ _ _
60 07
CS.r
Station 32
33 09
III 57
1851.0
- - __
59 22
_ _ _ _
60 01
CS.r
Station 7
33 10
no 03
1851.0
_ - _ -
59 42
__ __
60 21
C.Si
Station 31
33 10
III 54
1851.0
_-
59 28
-_
60 07
CS.r
Station 8"
33 12
no 10
1851.0
_- __
59 37
--
60 16
CS.r
Station 10
33 12
no 19
1851.0
- _ _ _
59 34
.. -_
60 13
CS.I
San Carlos
33 12
no 21
1903.2
13 00. 1 E
60 00. 3
.2742
13 06E
60 02
•2739
CS.3
Station 17
33 12
no 42
1851.0
_
59 23
_ _ _ _
60 02
CS.it
Station 9
33 13
no 19
1851.0
59 45
__ _ >
60 24
CS.r-
Globe
33 24
1 10 47
1903.2
13 37- I H
59 39-
•2752
13 43 E
59 41
.2749
CS.3
Phoenix
33 31
112 03
1903-
13 38. 8 E
59 47. 7
.2736
13 45 E
59 50
• 2733
CS.3
Hot Springs Junction
33 52
112 40
1903. I
13 46. 4 E
60 26.0
. 2683
13. 52 E
60 28
.2680
CS.3
Congress
Williams River
34 II
112 51
1903. I
14 01. 1 E
60 44,1
. 2702
14 08 E
60 46
.2698
CS.3
34 13
113 33
1854. I
13 41 E
60 08
.2781
14 40 E
60 38
.2680
CS.dit
Camp 123
34 14
113 39
1854. I
60 10
.2768
60 39
.2667
CS.it
Williams River
34 17
113 26
1854. I
13 2^ E
60 14
.2777
14 23 E
60 44
.2676
CS.dit
Camp 126
On Colorado R.
34 17
113 56
1854. I
60 II
.2765
60 40
.2664
CS.it
34 23
114 06
1854. I
14 08 E
60 34
2739
15 09E
61 00
.2638
CS.it
Mayer
34 26
112 15
1903. I
13 55. 8 E
60 49.6
.2662
14 02 E
60 51
.2659
CS.3
Kirkland
34 26
112 45
1903. I
13 49. 2 E
60 50.7
.2677
, 13 55 E
60 52
.2674
CS.3
Camp 129
34 27
114 II
1854. I
_
60 35
.2740
61 02
.2639
CS.it
Wilhams River
34 32
113 28
1854. I
13 58 E
60 44
.2727
14 57 E
61 14
.2626
CS.dit
Prescott
34 34
112 30
1903. I
13 54. 5 E
60 58.8
.2652
14 ooE
61 01
.2648
CS.3
Williams River
34 36
113 28
1854. 1
14 02 E
60 36
.2730
15 01 E
61 06
.2629
CS.d]
[::
Camp 130
34 36
114 16
1854. I
13 51 E
60 30
.2747
14 53 E
60 56
.2646
. CS.d]
[::
Camp 132
34 46
114 23
1854. 2
13 36 E
60 48
.2724
14 38 E
61 14
.2623
CS.d]
i::
Jerome Junction
34 48
112 26
1903. I
14 02. 6 E
61 21.0
.2636
14 08 E
61 23
•2633
CS.3
Camp 135
34 52
114 32
1854. 2
13 56 E
60 57
.2723
14 58 E
61 23
. 2622
CS.dit
Little Colorado R.
34 53
no 04
1853.9
13 42 E
62 15
.2667
14 09E
62 42
.2565
CS.di::
Holbrook
34 55
no 10
1903.2
13 35.5 E
62 36. I
.2567
13 41 E
62 38
.2563
CS.3
Pueblo Creek
34 56
112 46
1854. I
13 59 E
61 13
. 2726
14 50 E
61 41
• 2625
CS.dit
Near Puerco R
34 58
109 52
1853.9
14 00 E
6i 46
.2707
14 27 E
62 13
.2605
CS.d]
■t
t U. S. & Mex. Bound. Sur., W. H. Emory and T. W. Chandler, observers; Am. Acad. Sc, Vols. V and VI, 1856
t J. C. Ives and A. W. Whipple, observers; C. & G. S. Report, 1856, p. 222.
20 MAGNETIC TABLES AND CHARTS FOR 1905.
Table I. — Observed magnetic elements and the values reduced to January i, 1905 — Continued.
ARIZONA— Continued
station
Williams River
Little Colorado R.
Do.
Big Horse Spring
Lithodendion Creek
Winslow
Jacobs Well
Little Colorado R.
Navajo' Spring
Carriso Creek
Williams River
White Cliff Creek
Navajo
Little Colorado R.
Head, White Cliff ck.
Flagstaff
Kingman
Ash Fork
Williams
Saroux Spring
Little Colorado R.
Do.
Cedar Creek
Seligman
Seligman A
Seligman B
Seligman C
Hackberry
Peach Springs
Grand Canyon
Lati-
T-ODKi-
tude 1 tude
Date
N.
W. of Or.
r
t
34 59
"2 57
1854. I
35 00
1 10 25
1853. 9
35 01
1 10 30
1853- 9
35 01
"3 36
1854. I
35 02
109 41
1853- 9
35 02
no 43
1903.2
35 04
109 14
1853.9
35 05
no 33
1854.0
35 06
109 20
1853.9
35 06
109 32
1853. 9
35 07
"3 13
1854. I
35 08
"3 31
1854. I
35 09
109 33
1903.2
35 12
no 37
1854.0
35 12
113 21
1854. I
35 14"
III 39
1903.2
35 14
114 03
1903. I ,
35 16
112 30
1903.0 1
35 17
112 II
1903.
35 17
m 39
1854.
35 18
no 53
1854.0 1
35 21
no 56
1854.
35 21
112 20
1854.0
35 22
112 53
1903. I
35 22
112 53
1903. I
35 22
112 53
1903. I
35 22
"2 53
1903. I
35 24
"3 45
1903. I
35 33
113 26
1903. I
36 06
112 07
1903. I
Observed
Dccl'n
48 E
40 E
21 E
18 E
33 E
25. 6 E
44 E
23 E
54 E
40 E
42 E
43.4 E
39 E
03. 3 E
34. 5 E
07.2 E
15.2 E
52 E
42 E
49 E
22. I E
07.8 E
42. 3 E
59- 2 E
4 48. 2 E
5 19. 7 E
4 21.8 E
Incl'n H. Int.
61 06
61 54
61 41
61 02
61 57
62 01. I
61 59
61 44
61 58
62 05
61 17
60 48
62 24. 4
61 45
61 14
61 44.9
61 33.7
62 28.4
61 50.5
61 33
61 55
62 03
62 06
61 38.6
61 32.9
6; 58.6
62 43. 2
c. g. s.
.2730
. 2691
. 2706
.2709
.2688
. 2600
.2699
.2699
. 2702
.2687
.2665
•2755
•2594
. 2708
.2738
.2634
. 2614
.2567
. 2609
. 2711
2691
2697
2688
.2588
.2618
. 2602
.2565
Reduced to 1905.0
Ded'n
5 39 E
^4 13 E
3 54 E
5 17 E
Z 53 E
[4 31 E
[4 ooE
3 39 E
4 12 E
4 39 E
5 41 E
^3 49 E
4 12 E
4 09E
[4 40 E
5 13 E
[4 21 E
38 E
15 E
. 35E
10 28 E
14 E
48 E
05 E
54 E
26 E
27 E
Ind'n H. Int.
61 34
62 21
62 08
61 30
62 24
62 03
62 26
62 II
62 25
62 34
61 45
61 16
62 26
62 12
61 42
61 47
61 35
62 30
61 52
62 01
62 20
62 28
62 34
61 40
c. g, s.
, 2629
2589
. 2604
.2608
2584
2597
2595
2598
, 2600
2585
2564
2654
2591
. 2607
2637
2631
, 261 1
2564
. 2606
, 2610
2590
2596
2587
2584
61 35 .2615
62 00 I. 2599
62 45 :. 2562
ARKANSAS
Source
CS.dit
CS.dit
CS.dit
CS.dit
CS.dit
CS.3
CS.dit
CS.it
CS.dit
CS.dr-
CS.di ■
CS.di •
CS.3
CS.dit
CS.it
CS.3
CS.3
CS.3
CS.3
CS.dit
CS.dit
CS.it
CS.dit
CS.3
CS.3
CS.3
CS.3
CS.3
CS.3
CS.3
/
/
/
/
c. g. s.
/
/
c. g. s.
Camden
33 35
92 50
1901.3
6 49. 4 E
63 29. 2
.2572
657E
63 38
.2559
CS.d2
Monticello
33 37
91 46
1901
3
6 14. 5 E
63 44.8
.2558
1 6 21E
63 53
.2545
CS.d2
Murfreesboro
34 04
93 42
1901
4
7 08. I E
63 49- 9
•2553
1 7 16E
63 58
•2540
•CS.d2
De Queen
34 04
94 18
1905
9
7 30. 8 E
63 47. 2
•2546
' 7 28E
63 45
64 28
.2549
CS.6
Pine Bluff
34 15
92 01
1901
3
6 27.2 E
64 20. 6
• 2520
' 6 34E
•2507
CS.d2
Malvern
34 22
92 49
1901
4
6 05. 1 E
63 44-5
.2594
1 6 iiE
63 52
.2581
CS.d2
Helena
34 32
90 35
1890
4
6 06. 5 E
64 33. 3
•2514
' 5 50E
64 47
.2479
CS.di
Mount Ida
34 35
93 37
1905
9
7 04. 2 E
64 27. 5
•2513
7 02 E
64 26
. 2516
1 CS.6
Mena
34 36
94 14
1905
9
7 31.2 E
64 23. 2
.2518
! 7 29E
64 21
.2521
CS.6
Clarendon
34 42
91. 19
1905
9
! 6 39. 3 E
65 00.5
. 2468
' 637E
64 59
.2471
CS.6
Little Rock
34 44
92 16
1896
3
1 6 48. 8 E
64 48. 8
.2466
6 50E
65 02
.2442
1 CS.di
Little Rock, Fort
34 47
92 18
1901
4
1 6 37.4 E
64 45- I
.2478
644E
64 53
.2466
CS.d2
Waldron
34 56
94 06
1905
9
1 7 36.6 E
64 58. 6
.2480
i 7 34E
64 57
.2483
CS.6
Penyville
35 01
92 50
1905
9
1 6 37. 6 E
65 09.4
.2471
' 635E
65 08
.2474
CS.6
Forrest City
35 02
90 48
1905
9
5 36.0 E
65 46.9
•2398
1 5 34E
65 45
. 2401
' CS.6
Danville
35 05
93 25
1905
9
1 7 12.6 E
65 19. I
.2453
7 loE
65 17
.2456
1 CS.6
Marion
35 14
90 13
1903
5 59. 5 E
65 47.6
.2423
' 6 02E
65 52
.2419
1 ^§-3
Searcy
35 16
91 45
1905
9
6 03. 7 E
65 49. 3
.2414
6 02 E
65 48
.2417
' CS.6
Russellville
35 16
93 08
1905
4
7 26.4 E
65 29.4
.2429
7 25 E
65 29
.2430
CS.5
Van Buren
35 27
94 22
1905
4
7 39- 2 E
65 34.6
•2431
1 7 38E
65 34
.2432
S§-5
Clarksville
35 29
93 32
1905
9
7 00. E
65 41.3
.2441
1 6 58E
65 40
•2444
CS.6
Heber
35 31
92 01
1905
9
6 31.8 E
66 02.0
• 2386
6 30E
66 00
.2389
CS.6
Newport
35 36
91 16
1901
5
5 24. I E
66 15.8
.2380
5 30E
66 23
.2367
CS.d2
Clinton
35 37
92 26
1905
9
6 49. 8 E
66 09. 2
.2383
647E
66 07
.2386
CS.6
Batesville
35 47
91 39
1901
5
6 29. 7 E
66 19.6
• 2380
6 35 E
66 26
.2367
CS.d2
[onesboro
: Marshall
35 49
90 43
1901
4
5 19.3 E
66 36.0
■2374
5 24E
6644
. 2362
CS.d2
35 56
92 38
1905
9
6 43. 6 E
66 32. 8
.2336
6 41 E
66 31
.2339
CS.6
Walnut Ridge
36 00
93 12
1905
8
6 46. 9 E
66 04.0
.2388
6 45E
66 02
.2391
CS.6
36 04
90 59
1901
4
5 35. 5 E
66 30. 6
•2374
5 40E
66 37
• 2362
CS.d2
Evening Shade
36 04
91 38
1901
5
6 20. 2 E
66 32. I
.2358
6 26 E
66 39
.2346
CS.d2
Paragould
36 05
90 32
1901
4
5 53. I E
66 34.0
.2367
5 57E
66 41
.2355
CS.d2
t J. C. Ives and A. W. Whipple, observers; C. & G. S. Report, 1855, p. 222.
MAGNETIC ELEMENTS IN THE UNITED STATES.
21
Table I. — Observed magnetic elements and the values reduced to January i, 1903 — Continued.
ARKANSAS— Continued
Observed
Reduced to 1905-0
Lati-
^"
Source
Statkm
tude
tude
Date
N.
W. of Gr.
Ded'n
Ind'n
H. Int.
Decl'n
Ind'n
H. Int.
/
/
/
/
c. g. s.
/
/
c. g. s.
Huntsville
36 05
93 43
1905.9
7 32. 5 E^
66 15.5
•2370
7 30 E
66 14
-2373
CS.6
YeUville
36 14
92 42
1905-8
7 49- 4 E
66 46.8
.2333
7 47 E
66 45
.2336
CS.6
Harri.son
36 15
93 07
1905-8
7 05. 8 E
66 43- 5
.2338
7 04E
66 42
.2340
CS.6
Hardy
36 20
91 28
1905.8
6 27.6 E
66 48.6
.2318
6 26E
6647
. 2320
CS.6
Mountain Home
36 21
92 21
1905.8
6 41. 4H
66 46. 5
.2333
6 40E
6645
.2336
CS.6
Bentonville
36 22
94 12
1905.4
7 16. 6 E
66 20.0
.2378
7 16E
66 19
.2380
CS.5
Salem
36 24
91 51
1905.8
5 58. 6 E
66 50. 2
.2330
5 57E
6649
• 2333
CS.6
Coming
36 25
90 35
I9C}X;4
5 53. 9 E
67 04.9
-2313
5 58 E
67 11
.2300
CS.d2
CALIFORNIA
Calexico
San Diego, City
Park
San Diego, Pt. Loma
San Diego, C. I.
Holtville
Imperial
Foster
Escondido
Oceanside
Temecula
Capistrano
Newport Beach
Elsinore
Indio
San Pedro
San Jacinto
Los Angeles, SE base
Dominguez Hill
Los Angeles, N W base
Banning
Santa Monica
Redlands
Los Angeles, Elysian
Park
San Bernardino
North Pomona
Mount Wilson
Ventura
Saugus
Santa Barbara
Pt. Conception
Bagdad
Oro Grande
Palmdale
Stedman
Los Olivos
Needles
Barstow
Blake
Santa Maria
Kramer
Kelso
Soda Lake
Mojave
Pai-ute Creek
Sand Camp
Port Harford
Marl Spring, near
San Luis Obispo
Manvel
Caliente
Asphalto
Randsburg
32 40
32 43
32 42
32 43
32 48
32 51
32 54
33 08
33 12
33 30
33 30
33 36
33 40
33 44
33 44
33 47
33 47
33 52
33 55
33 56
34 01
34 03
34 04
34 06
34 06
34 13
34 17
34 24
34 25
34 27
34 35
34 35
34 35
34 37
34 40
34 50
34 54
34 55
34 58
34 59
35 00
35 03
35 03
35 06
35 06
35 10
"5 31
117 10
117 14
117 12
"5 24
115 37
"6 55
117 05
117 24
117 09
117 40
"7 55
117 20
116 14
118 17
116 57
"7 57
118 14
1x8 04
"6 55
118 30
117 08
118 15
117 16
"7 45
118 04
119 18
118 33
119 42
120 27
"5 53
117 20
118 07
116 II ' I
120 07 I
114 36 I
117 02 I
115 04 I
120 26 I
117 36 I
"5 40 , I
"5 59 1 I
118 10 1 I
114 54 I
115 46
I
120 45
I
"5 33 ' I
120 44 I
115 14 i i
118 38 I
119 36 I
117 40
I
1905.2
1892. I
1905.3
1905. 8
1905. 1
1905.2
1897.1
1905.3
1897. I
1905.2
1897. I
1897. I
1897.2
1905. 2
1897. I
1897. I
1890.3
1870. 2
1890.4
1905.2
1897. 1
1905.2
1906.0
1905. 2
1897. I
1906.0
1897.0
1897.0
1897.0
1872.9
1897.0
1897. I
1897.0
1905.3
1897.0
1895.2
1906.4
1897. 1
1897.0
1897.0
1906.4
1854. 2
1897. 1
1854. 2
1854. 2
1897.0
1854. 2
1881.3
2897.0
1897. I
1897. I
1905. 3
14 04, 9 E
13 56. 4 E
14 00. 8 E
14 43.0 E
14 13. 4 E
14 14.4 E
14 21.8 E
15 26.0 E
14 56. 6 E
14 30. 4 E
14 31. I E
14 30. 6 E
13 53. 4 E
14 45.0 E
14 32.2 E
14 11.3 E
13 25.6 E
15 20. 8 E
14 27.2 E
14 45.5 E
14 34. 7 E
15 02.6 E
15 14. 2 E
15 03. 6 E
14 41. 7 E
15 06. 3 E
14 48. 3 E
14 48. 3 E
14 58. 4 E
14 51.8 E
14 29. 6 E
15 18.7 E
14 50. 8 E
15 21.2 E
15 12. I E
14 13.7 E
15 29. 6 E
14 41. 1 E
15 28. 1 E
14 57.3 E
14 47. 8 E
13 51 E
15 00. 6 E
14 17 E
15 06.0 E
13 59 E
15 36. 7 E
16 02.8 E
15 09. o E
15 35- 7 E
15 32.0 E
58 37.9
58 01.6
58 06. 3
58 05.0
58 37.6
58 41.2
58 50.0
59 18.8
58 35.7
59 08. 9
59 00.5
59 02. 3
60 15.0
59 19.8
59 04.4
59 22.8
58 49. 2
59 24.2
59 15.8
59 39-6
59 30.9
59 38.3
59 37. 7
59 39.0
59 37.4
59 50. o
59 38. 6
58 51.0
60 27.8
60 31. 2
59 55. 8
60 19.4
59 47.4
60 56. I
60 28.6
60 35.9
59 44-1
60 27.0
60 45-9
61 07
60 26.5
61 10
60 49
60 27. 2
60 56
60 30.0
61 21.5
60 39. o
60 30. 8
60 41.4
I
c. g, s,
.2753
.2795
.2769
•2775
.2757
.2750
. 2726
.2736
.2769
2701
.2745
2743
. 2701
2722
2724
•2729
.2746
2792
.2730.
2715
. 2726
.2693
2690
2694
2667
2684
2700
2691
2684
2723
2685
2663
2684
2657
2679
2647
2641
2658
2691
2654
2643
2706
2662
2704
2730
2665
2710
2689
2641
2646
2653
2638
4 04 E
4 26E
[4 00 E
[4 40 E
[4 13 E
4 14 E
4 44E
5 25 E
5 20 E
[4 30 E
4 56 E
4 55 E
[4 18 E
14 44E
[4 57 E
4 36 E
[4 00 E
[6 10 E
[5 01 E
^4 45 E
5 ooE
:5 02 E
[5 10 E
15 03 E
5 06 E
5 03 E
5 13 E
5 13 E
5 23 E
5 39 E
4 54 E
5 44E
5 16 E
5 20E
5 38 E
[4 40 E
5 25 E
5 04 E
5 54 E
5 21 E
4 43 E
5 03 E
5 24 E
5 29 E
34 E
II E
20 E
28 E
33 E
02 E
31 E
/
cg.s.
5838
.2753
58 05
.2775
58 06
.2769
58 05
-2776
5838
.2758
58 41
•2750
58 52
.2715
59 19
.2736
58 37
.2758
59 09
. 2701
59 02
.2734
59 02
.2732
60 15
. 2690
59 20
.2722
59 04
.2713
59 23
.2718
__ -_
.2723
58 50
. 2716
.2706
59 24
.2715
59 16
.2715
59 40
.2693
59 31
. 2692
59 38
.2695
59 38
.2656
59 39
.2685
59 37
. 2689
59 50
.2680
59 39
.2673
58 55
.2654
60 28
.2674
60 31
.2652
59 56
.2673
60 19
.2657
59 46
.2668
60 59
•2633
60 29
. 2642
60 38
•2647
59 44
.2680
60 27
■2643
60 46
. 2646
61 22
.2606
60 26
.2651
61 26
.2604
61 06
.2630
60 26
.2654
61 12
. 2610
60 35
.2646
61 26
. 2630
60 38
.2635
60 30
. 2642
60 41
.2639
I CS.5
I CS.di
CS.5
CI.
CS.5
CS.5
CS.di
CS.5
CS.di
CS.5
CS.di
CS.di
CS.di
CS.5
CS.di
CS.di
CS.di
CS.di
CS.di
CS5
CS.di
CS.5
CS.6
CS.5
CS.di
CS.6
CS.d2
CS.d2
CS.d2
CS.di
CS.di
CS.di
CS.d2
CS.5
CS.d2
CS.di
CS.6
CS.di
CS.d2
CS.di
CS.6
CS.dit
CS.d2
CS.dit
CS.dit
CS.d2
CS.dit
CS.di
CS.di
CS.d2
CS.d2
CS.5
t J. C. Ives and A. W. Whipple, observers; C. & G. S. Report 1856. p. 222.
22 MAGNETIC TABLES AND CHARTS FOR 1905.
Table I. — Observed magnetic elements and the values reduced to January j, 1^03 — Continued.
CALIFORNIA— Continued
Observed
Reduced tc
X90C.0
SUtion
Lati-
tude
^,^"
1
tttde
Date
Source
N.
W.ofGr.
Ded'n
Ind'n
H. Int.
, Ded'n
Ind'n
H. Int.
/
/
1
/
1
/
c. g. s.
1
/
/
c. g. s.
Bakersfield
35 23
119 02
1905.3
1 15 49. 4 E
60
42.5
.2639
15 48 E
60
42
• 2639
CS.5
Santa Margarita
35 23
120 37
1897.0
' 15 54. 1 E
60
00.5
.2671
16 22 E
59
59
.2661
CS.d2
Delano
35 47
119 16
1897. I
15 34. 9 E
61
51.5
.2586
16 00 E
61
50
.2576
CS.d2
Bradley
35 51
120 48
1897.0
15 59.0 E
60
42.4
.2636
16 27 E
60
40
.2626
CS.d2
San Lucas
36 08
121 01
1897.0
16 02. I E
60
56.0
.2619
16 31 E
60
54
. 2609
CS.d2
Huron
36 13
120 06
1897. I
! 16 05. 8 E
61
22.9
. 261 1
16 34 E
61
20
.2601
CS.d2
Visalia
36 21
119 17
1897. I
, 15 59. I E
61
16.4
. 2629
16 25 E
61
14
. 2619
CS.d2
Soledad
36 26
121 20
1896. 9
' 16 14. 8 E
61
13.6
. 2602
; 16 44E
61
II
•2594
CS.d2
Mount Toro
36 32
121 36
J885. I
15 56. 8 E
. 2612
1 16 43 E
__
■ 2584
! CS.di
Monterey, near
redoubt
Point Pinos
3636
121 54
1896.0
16 14. 6 E
61
15.9
.2597
! 16 47 E
61
13
.2587
, CS.di
36 38
121 56
1873.6
15 55- 3 E
61
12.5
.2626
16 50 E
61
14
.2574
1 CS.di
Salinas
36 40
121 40
1896.9
16 17. 7 E
61
27.9
•2593
16 48 E
61
26
.2585
1 CS.d2
Fresno
36 44
119 48
1905.6
; 16 23.9 E
61
44.2
2552
16 21 E
61
45
2552
' CS.6
Do.
36 44
119 48
1897. I
1 15 53.3 E
61
48.0
.2564
! 16 22 E
61
46
.2557
CS.d2
Mendota
36 46
120 22
1897. I
1 16 13. 9 E
61
38.6
.2608
i 16 43 E
61
36
. 2601
! CS.d2
HoUister
36 51
121 28
1896.9
' 16 09. I E
61
40.8
.2574
1 16 40 E
61
38
.2566
CS.d2
Santa Cruz
36 57
122 02
1904.3
1 16 53- oE
61
39.0
.2570
' 16 56 E
61
39
.2569
CS.4
Madera
36 59
120 03
1897.2
1 15 32.2 E
62
22.8
.2515
16 00 E
62
20
.2508
i CS.d2
Volta
37 07
120 56
1897. I
17 05. I E
61
41.8
.2594
' 17 35 E
61
39
■ 2587
, CS.d2
Loma Prieta
37 07
121 51
1884. 2
1 16 06. 1 E
•2578
1 16 56 E
• 2552
CS.di
Merced
37 18
120 28
1897. 2
1 15 33. 4 E
63
12.5
.2489
1 16 ox E
63
10
.2482
1 CS.d2
San Jose
Mt. Hamilton, Lick
Obsy.
Sierra Morena
37 18
121 52
1906. 4
' 18 16. 6 E
61
28.0
. 2624
1 18 10 E
61
29
.2626
1 CS.6
37 20
121 38
1900.9
1 16 28.5 E
61
44.8
.2566
1 16 46 E
61
43
• 2561
CS.d2
37 24
122 18
1884.
1 16 38. 6 E
.2555
1 17 28E
.2528
; CS.di
Palo Alto
37 26
122 10
1904. 3
, 17 14.6 E
61
53"6
.2550
1 17 18E
61
54
• 2549
I CS.4
Mocho
37 29
121 33
1887. 6
16 35- 4 E
• 2582
17 22 E
.2562
CS.di
Modesto
37 38
120 59
1897.2
I 1626.0E
62
57.4
■2514
1 16 56 E
62
55
.2507
1 CS.d2
Altamont
37 45
121 40
1897. 2
1 17 II. 4E
62
26.8
.2536
1 17 41 E
62
26
.2529
1 CS.d2
San Francisco, Pre-
sidio
San Francisco, Pre-
37 48
122 27
1898. 2
16 55- oE
62
26.5
.2513
1 1722E
62
24
.2508
1 CS.d2
37 48
122 28
• 1905. 9
; 17 02.5 E
62
48.8
. 2481
1 16 59 E
62
49
. 2482
CS.6
sidio A
1
Goat Island
37 49
122 22
1905.6
1 17 33. 3 E
62
05. 7
•2529
1 17 31E
62
06
• 2530
1 CI.
Do.
37 49
122 22
1906.4
17 43- 6 E
62
05. 3
.2531
1 17 37 E
62
06
.2532
1 CS.6
Berkeley
37 52
122 16
1904.3
1 17 38. 6 E
62
17.9
•2531
17 41 E
62
18
.2530
ICS.4
Do.
37 52
122 16
1905.6
' 17 31. 8E
62
10. I
.2524
17 29 E
62
II
.2525
1 CL
Mount Diablo
37 53
121 55
1884.9
1 16 42.5 E
.2555
' 17 32 E
.2530
CS.di
Mount Tamalpais
37 55
122 36
1879. 8
16 00 E
16 51 E
1 CS.d
Mount Conness
37 58
119 19
1890.7
! 15 15.4 E
. 2416
1 15 47 E
__
• 2398
CS.di
Stockton
37 59
121 17
1906.5
1 17 35. 4 E
62
56.4
.2510
1 17 30 E
62
57
.2512
CS.7
San Rafael
37 59
122 33
1897. 7
, 17 11.3 E
62
22. 2
•2524
17 40 E
62
20
.2518
CS.d2
Do.
37 59
122 33
1905.6
1 17 38. 6 E
62
13.0
•2517
1 17 36E
62
13
.2518
CL
Punta de los Reyes
38 00
122 59
1853. I
' 15 35 E
17 17E
__
__
; CS.d
Milton
38 03
120 51
1897. 2
, 15 37. 6 E
63
17.9
•2467
' 16 06 E
63
15
• 2458
CS.d2
Mare I. Navy-Yd.
38 06
122 16
1887.3
17 07.6 E
62
23.0
. 2610
I 17 54 E
62
20
.2590
1 CS.di
Tomales Bay
38 II
122 57
1857. I
1 16 00. 4 E
_
1 17 31 E
CS.d
Fairfield
38 15
122 02
1897. 7
17 33.0 E
62
43.3
.2512
18 02 E
62
40
• 2506
; cs.d2
Napa
38 17
122 15
1898. I
, 17 38. 4 E
63
04- 3
■2457
, 18 06 E
63
02
• 2452
1 CS.d2
Bodega
38 18
123 01
1860.6
1 16 18. 8 E
•2563
! 17 40 E
[• 2483]
CS.di
Vaca
38 22
122 05
1880. 9
17 II. 6 E
•2525
1 18 02 E
.2492
; cs.di
Santa Rosa
38 27
122 43
1897.5
: 17 28.5 E
62
52.7
.2490
; 17 58 E
62
50
■ 2483
CS.d2
Ross Mountain
38 30
123 07
1860.0
16 23.2 E
1 17 45 E
1 CS.d
Sacramento
38 33
121 27
1905-3
1 16 44. I E
63
35-4
•2438
1 16 43 E
63 36
.2438
1 CS.5
Woodland
38 40
121 47
1898.0
18 10. E
63
05.0
• 2501
1 18 37 E
63
07
.2495
1 CS.d2
Monticello
38 40
122 II
1880. 8
1 17 12.8 E
63
14.2
.2499
1 17 58E
63
16
.2467
1 CS.di
Placerville
38 45
120 48
1897.8
1 18 20. 4 E
63
01. 6
■2517
1 18 46 E
63
04
• 2510
, CS.d2
Point Arena
38 54
123 42
1889. I
I 17 12.7 E
62
58.6
.2484
17 57 E
62
54
.2466
1 CS.di
Lake Talioe
38 55
120 05
1879. 7
16 48 E
17 28 E
1 CS.d
Auburn
38 55
121 04
1897.8
17 40.5 E
63
16.3
•2485
18 06 E
63
18
.2478
CS.d2
Lake Tahoe, SE
38 57
119 57
1895.8
16 57. 2 E
63 48- 8
•2450
' 17 24 E
63
52
• 2439
1 CS.di
Cold Spring
39 01
123 31
1891. 8
17 23. 6 E
18 06 E
__
' CS.d
Ukiah
39 08
123 13
1906. 5
18 23. 7 E
63
09.5
•2458
18 18 E
63
10
• 2459
1 CS.7
Marysville
39 09
121 36
1897.8
16 53. 7 E
63
47.8
•2443
, 17 21 E
63
49
.2435
, CS.dj
Colusa
39 12
122 02
1898,0
18 07. 2 E
63
40. 6
.2468
1 18 33 E
63
42
. 2461
CS.d2
1 CS.di
Blue Canyon
39 15
120 47
1881. 2
15 38. 4 E
64
22.3
.2425
1 16 21 E
64
24
.2394
MAGNETIC ELEMENTS IN THE UNITED STATES 23
Table I. — Observed magnetic elements and the volumes reduced to January i, 1905 — Continued.
CALIFORNIA— Continued
Station
Lati- I.on£i-
tude. tude
N. ' W. of Gr.
Nevada City
Snow Mtn., west
Oroville
Willows
Red Bluff
Do.
Mount Lassie
Susanville
Cape Mendocino
Redding
Humboldt, Red Bluff
Bucksport
Eureka
Montgomery
Madeline
Bieber
Bartle
Alturas
Yreka*
39 17
I2X
02
39 22
122
46
39 30
121
34
39 31
122
12
40 12
122
16
40 12
122
16
40 20
123
33
40 25
120
37
40 26
124
24
40 36
122
24
40 45
124
13
40 47
124
12
40 48
124
10
40 50
121
56
41 03
120
28
41 07
121
09
41 15
121
49
41 28
120
30
41 44
122
38
Observed
1897.7
1892.4
1897. 8
1898. o
1897.8
1906. 4
1892. 7
1906. 7
1886.3
1898.0
1854-3
1853.5
1871.6
1906. 8
1906. 7
1906. 8
1906. 8
1906. 7
1906. 8
17 57. I E
18 00. 3 E
17 24.8 E
18 14. I E
18 29.6 E
19 04. 2 E
19 38.9 E
19 23.8 E
18 00. 5 E
18 31.5 E
17 04.5 E
17 06.5 E
18 42.4 E
19 34- 8 E
19 50- 7 E
18 41-4E
20 28.4 E
19 01. Q E
23 46. 6 E
64 55-5
64 01.4
63 51- 6
64 49. o
64 42. 6
65 08.3
64 23. 7
64 58.0
64 58. 8
64 38. 7
65 46.5
65 II- 3
65 49- 7
67 37-9
1 Reduced to 1905.0
. 2362
-2432
•2449
.2386
.2386
.2351
.2403
•2377
2376
2427
2317
2336
2317
2078
Dccl'n
Incl'n
H. Int.
/
/
c.g.%.
18 22 E
64 58
-2353
18 39 E
17 52 E
64 02
.2424
18 41 E
63 53
■2442
18 57 E
64 51
.2379
18 59 E
64 42
.2387
20 18 E
-- _ _
19 18 E
65 07
.2352
18 46 E
64 21
.2382
18 58 E
6456
•2371
18 44E
__ - -
18 46 E
_. __
19 41 E
_ _ _ «
19 28 E
64 58
.2378
19 45 E
64 38
,2429
18 35 E
65 46
.2319
20 22 E
65 II
.2337
18 55 E
65 49
.2318
23 40 E
67 37
•2079
Source
CS.d2
CS.d
CS.d2
CS.d2
CS.d2
CS.6
CS.d
CS.7
CS.di
CS.d2
CS.d
CS.d
CS.d
CS.7
CS.7
CS.7
CS.7
CS.7
CS.7
/
/
c. g. 5.
, ^ ^
/
c.g.s.
13 01.8 E
64 45.8
.2480
13 14 E
64 51
.2469
CS.d2
13 47-3 E
65 26.5
. 241 1
13 53 E
65 29
.2407
CS.3
14 41-2 E
65 01. I
. 2461
14 47 E
65 03
•2457
CS.3
14 02.6 E
65 09.0
. 2426
13 58 E
65 07
.2430
CS.7
14 03. 9 E
64 46. 7
•2436
14 02 E
6446
•2438
CS.6
14 19.0 E
64 518
•2437
14 15 E
64 50
.2440
CS.7
12 36.4 E
65 56. 1
.2403
12 48 E
66 02
-2392
CS.d2
12 36.8 E
65 57-8
.2385
12 43 E
66 00
.2380
CS.3
, 13 28.8 E
65 37. 8
.2413
13 25 E
65 36
.2417
CS.7
14 20. 3 E
65 20.
.2403
14 18 E
65 19
■2405
CS.6
13 40. 6 E
64 50. 2
.2469
13 36 E
6448
.2472
CS.7
13 21.4 E
66 05.9
■2387
13 27 E ; 66 08
•2383
CS.3
14 53-7 E
66 23. 2
.2380
15 09 E
66 31
■2364
CS.d I
12 04.7 E
6647.6
-2323
12 15 E
66 53
.2312
CS.d2
13 02.6 E
6632.3
•2357
13 08 E
66 34
•2353
CS.3
12 50.9 E
66 40. 6
•2343
13 04 E
66 46
•2331
CS.d2
13 02.5 E
_
13 16 E
-_ __
CS.d
14 17- 8 E
67 24. I
■ 2361
14 32 E
67 32
•2342
CS.di
14 03- I E
66 12. 7
•2353
13 59 E
66 II
.2357
CS.7
12 16. I E
66 55.6
.2318
12 27 E
67 01
.2307
CS.d2
14 16.6 E
65 59.9
.2365
14 14 E
65 59
•2367
CS.6
14 43- 2 E
66 39. 8
•2352
14 43 E
6649
.2324
CS.di
14 38.0 E
66 07.3
.2340
14 34 E
66 06
.2343
CS.7
13 18.0 E
_
13 24 E
-_ __
CS.d
12 15. 4 E
__
12 22 E
__ __
CS.d
15 17- 2 E
66 15. 2
.2389
15 13 E
66 14
.2392
CS.7
12 26. I E
67 15- 9
. 2280
12 22 E
67 15
. 2283 1
CS.6
14 23. 6 E
67 03.5
.2300
14 23 E
67 12
. 2272 '
CS.di
13 55- oE
66 55.6
•2305
14 09 E
67 03
. 2287
CS.di
66 59. 2
.2335
_ _ __
67 06
.2299
CS.it
14 49.4 E
_
■2349
15 07 E
_ _ _ _
•2331
CS.di
12 38 E
_
12 45 E
CS.d
14 22. 2 E
66 39.0
.2321
14 37 E
6647
. 2301
CS.di
12 33.5 E
_
12 40 E
CS.d
15 07. 8 E
66 24.3
.2324
15 05 E
66 24
. 2326
CS.6
15 01. I E
_
15 15 E
- - _ _
CS.d
13 03.8 E
67 34.6
.2274
13 00 E
67 34
.2277
CS.6
14 49. 2 E
66 26. 8
.2332
14 45 E
66 25
• 2336 ,
CS.7
12 15.8 E
67 37.7
.2268
12 27 E
67 42
•2259
CS.d2
13 30- 3 E
67 52.4
.2235
13 26 E
67 51
.2238
CS.6
Conejos
37 06
Trinidad, new
37 II
Trinidad, old*
37 II
Pagosa Springs
37 15
Durango
37 17
Cortez
37 20
Springfield
37 24
Thatcher
37 35
Walsenburg
37 36
Del Norte
37 41
Rico
37 42
La Junta
38 00
Uncompahgre
38 04
Lamar
38 05
Las Anitnas
38 05
Pueblo
38 14
Plateau
38 23
Mount Ouray
38 25
Cafion City
38 26
Sheridan Lake
38 28
Montrose
38 29
Gunnison
38 33
Delta
38 44
Arapahoe
38 46
Firstview
38 48
Buena Vista
38 48
Cheyenne Wells
38 49
Colorado Springs
38 50
Pikes Peak
38 50
Manitou
38 52
Chiquita
38 54
Landsman
38 57
Mount Treasury
39 00
Monotony
39 02
Grand Junction
39 05
Mount Elbert
39 07
Hugo
39 08
Aspen
39 12
Burlineton
Deer Trail
39 18
39 36
106 01
104 31
104 32
107 01
107 53
108 39
102 36
104 08
104 48
106 20
107 59
103 34
107 28
102 37
103 14
104 38
1104 33
106 14
105 15
102 17
107 53
106 56
108 06
102 05
102 32
106 08
102 20
104 49
105 03
104 55
108 39
102 35 I
107 06 I
102 14 I
108 33 I
106 27 I
103 29
106 50 ,
102 16 I
104 03 ;
♦ Local disturbance.
1899
1903
1903
1906
1905
1906
1900
1903
1906
1905
1906
1903
1895
1900
1903
1899
1894
1894
1906.
1900
1905
1886
1906
1892
1892
1906
1906
1886
1895
1878
1895
1892
1893
1892
1905
1894
1906
1906
1900
1906,
t T. E. Thorpe, observer; Proc. R. S., No. 200, 1880.
24 MAGNETIC TABLES AND CHARTS FOR 1905.
TabItB I. — Observed magnetic elements and the values reduced to January i, 1^03 — Continued.
COLORADO— Continued
Station
Lati-
tude
N.
Longi-
tude
W.ofOr.
Date
Observed
Reduced to 1905.0 ,
Decl'n
Incl'n
/
H. Int.
Decl'n
Incl'n
H. Int. '
Source
/
/
/
c. g. s.
/
/
C. g. s.
Glenwood Springs
39 32
107 20
1905.7 1
15 54- 4 E
66 42.9
•2351
15
52 E
66 42
.2352
CS.6
Do. *
39 32
107 20
1906
7 1
15 59- 6 E
.2347
15
S5E
- - __
.2351
CS.7
Tavaputs
RedclifT
39 32
109 00
1891
8 '
14 58. 2 E
66 40.
•2338
1 15
17 E
66 48
•2317
CS.dl
39 34
106 20
1906
7 ,
14 18.3 E
67 28.0
•2253
1 ^4
14 E
67 26
.2256
CS.7
Castle Rock
39 23
104 51
1906
5 1
H 39- 7 E
67 32.0
.2278
14
36 E
67 31
. 2281
CS.6
Gerdts
39 42
102 40
1900
8
13 39. 2 E
68 25. I
. 2220
! ^3
50 E
68 30
. 2211
CS.d2
Georgetown
39 44
105 44
1905
^ 1
15 32.4 E
67 25. I
.2250
; ^^
30 E
67 24
.2251
CS.6
Denver
39 46
104 54
1899
9 !
14 01.8 E
67 36.5
.2256
1 '4
12 E
67 42
. 2246
CS.d2
Do.
39 46
104 54
1905
8
_
67 38- 9
■2247
67 38
.2249
CS.6
Boulder
39 55
105 16
1906
8
H 23.3 E
67 47. 6
.2239
14
19 E
67 46
.2242 1
CS.7
Meeker
40 01
107 54
1906
7
15 30. 3 E
67 28.5
.2250
1 ^5
26 E
67 27
•2253
CS.7
Wray
40 05
102 12
1906
5
12 52.5 E
68 16.3
. 2209
1 12
49 E
68 15
.2212
CS.7
Sulphur Springs
40 05
106 06
1906
7
15 16.4 E
68 00. 2
.2208
15
12 E
67 59
.2211
CS.7
Topenas
40 06
106 48
1906
7
14 37-3 E
67 33-
.2247
' 14
33 E
67 32
.2250
CS.7
Yuma
40 08
102 41
1900
8
12 58. 4 E
68 18.3
. 2221
13
08 E
68 23
.2212
CS.d2
Akron
40 10
103 13
1900
8
13 06. 4 E
68 29.4
. 2201
1 13
16 E
68 34
.2193
CS.d2
Fort Morgan
40 17
103 48
1906
5
14 15- 1 E
68 29.6
.2202
14
II E
68 29
.2205
CS.6
Greeley
Steamboat Springs
40 28
104 41
1906
8
14 04. 9 E
68 24.4
•2195
, ^4
01 E
68 23
. 2198
CS.7
40 31
106 50
1906
7
16 17.8 E
67 59-5
. 2221
1 16
14 E
67 58
. 2224
CS.7
^^ ,
40 31
107 31
1906
7
15 30. 4 E
67 55-6
.2224
1 ^^
26 E
67 54
.2227
CS.7
Holyoke
40 35
102 17
1906
5
13 36. 2 E
6q 07.4
.2154
' 13
33 E
69 06
•2157
CS.7
Sterling
40 37
103 13
1900
8
13 03. 9 E
69 10. I
.2165
; '3
12 E
69 ;4
.2156
CS.d2
Fort Collins
40 38
105 07
1906
8
15 05. 2 E
68 40.0
•2174
15
01 E
68 39
.2178
CS.7
Hahns Peak
40 49
106 57
1906.7
15 44- 6 E
68 10.8
.2213
> 15
40 E
68 09
.2217
CS.7
CONNECTICUT
/
/
1
/
/
c. g. s.
1 ** '
/
c. g. s.
Stamford
41
04
73 32
1844.7
6 36. W
73 02. 3
• 1791
, 10 13W
71
56
. 1827
CS.di
Round Hill
41
06
73 40
1833- 5
5 43 W
' 10 03 w
CS.d
Norwalk
41
07
73 25
1844.7
6 49.4 W
73 09.8
.isis
1 10 26W
72
04
.1854
CS.di
Black Rock
41
09
73 13
1845- 7
6 53.5 W
! 10 26 w
CS.d
Bridgeport
41
10
73 II
1845- 7
6 19. 3 W
73 21.3
•1723
1 9 52W
72
12
.1787
CS.di
Double Beach
41
14
72 51
1884.6
9 25.8W
72 50.4
.1793
1 10 36 w
72
20
. 1810
CS.dit
South End
41
14
72 53
1884.6
8 46. 2 W
9 57W
__
_ ___ _
CS.dt
Milford
41
14
73 04
1845. 7
6 38. 3 W
_
- _- _
10 09 w
__
CS.d
Lighthouse Point
41
15
72 54
1884.5
72 46. I
•1797
-._ __
72
16
. 1814
CS.it
Saybrook
41
16
72 21
1845.6
6 49. 9 W
74 33- 8
•1643
10 30 w
73
18
.1712
CS.di
Tashua
41
16
73 15
1863.7
8 02.5 W
73 00. 8
.1792
10 26 w
71
54
. 1851
CS.di
Sachems Head
41
17
72 44
1845.6
6 15. 2 W
9 55W
CS.d
Fort Wooster
41
17
72 54
1848.6
7 25.5 W
74 12.6
.1668
10 53 w
73
00
.1739
CS.di
Oyster Point
41
17
72 56
1855.6
7 02. 7 W
73 44.5
. 1701
10 02 W
72
30
.1777
CS.di
Groton Point
41
18
72 05
1845.6
• 7 29.5 W
72 57.9
II 01 w
71
40
CS.d
New Haven
41
19
72 55
1904. 6
10 05. 9 W
72 21.0
. 1802
10 07 w
72
21
. 1802
CS.5
Stonington
41
20
71 56
1906. 9
10 50. 2 w
72 35-8
.1808
10 44W
72
38
. 1808 ,
CS.7
New I^ndon
41
21
72 07
1904. 6
10 56.0 w
72 33. 8
. 1805
10 58 w
72
34
. 1804 1
CS.5
Wooster
41
21
73 29
1864.6
7 37.6W
73 24.6
. 1760
9 57W
72
20
. 1817 t
CS.di
Centerville
41
23
72 54
1884.5
9 06. 2 W
72 49-9
.1787
10 17 w
72
20
. 1803 j
CS.dit
Danbury
41
24
73 25
1904. 6
10 35-5 W
72 23.3
. 1814
I037W
72
23
.1813 !
CS.5
Sandford
41
28
72 57
1862. 8
7 01.7 w
73 33. 3
.1777
9 28W
72
24
. 1837 i
CS.di
Middletown
4x
33
72 36
1904. 6
10 II. 8W
72 410
.1784
10 13 W
72
41
.1783
CS.5
Westfield
41
34
72 43
1891.7
946 w
10 32 w
CS.d
Taylor
41
40
72 35
1891.7 i
9 28 W
10 14 w
__
__
CS.d
Scboolhouse Hill
41
40
72 41
1891.7 ,
9 49 W
_ - -- - -
10 35 W.
--
CS.d
Litchfield
41
42
73 14
1904.6 1
II 04. W
72 45-5
. 1781
n 06 W
72
45
. ^780 1
CS.5
Hartford
41
45
72 40
1904.6
10 39. 4 w
72 48.9
.1771
10 41 W
72
49
. 1770 1
CS.5
Do.
41
46
72 40
1890.8 ,
9 01.5 W
73 06.0
■ 1748
948W
72
48
. 1754 1
CS.di
Brooklyn
41
47
71 58
1904. 6
II 08.0 W
73 01.6
• 1749
II 10 w
73
01
. 1748 1
CS.5
Box Hill
41
48
72 27
1861.8 1
8 30.4 W
73 57-9
. 1726
II 04 w
72
44
. 1789 '
CS.dl
Ivy
41
52
73 14
1863. 5
8 25.7 W
73 32.0
.1748
10 54 W
72
25
. 1801 1
CS.di
Tolland
41
53
72 22
1904. 6 '
10 27.9 W
72 58. 7
.1746
10 29 W
72
58
. 1746 ,
CS.5
Bald Hill
41
58
72 12
1861.7 ,
8 50.4 W
73 47. 5
•1713
II 19 w
72
32
• 1777
CS.dl
t The observations were made by O. T. Sherman.
MAGNETIC ELEMENTS IN THE UNITED STATES.
25
Table I. — Observed magnetic elements and the values reduced to January i, igo^ — Continued.
DELAWARE
Observed
1
Reduced to 1905
.0
Lati-
tude
Longi-
tude
Date
Source
Station
N.
W.ofOr.
Decl'n
Incl'n
H. Int.
■
Dccl'n
Incl'n
/
H. Int.
/
/
/
/
c. g. 8.
.2029
/
c. g. 8.
Dagsboro
Seaford
38 33
75 16
X899.5
5 29-8 W
70 13.0
547W
70 15
. 2016
CS.d2
38 38
75 37
1899. 5
70 12.9
•2044
_ -- _ -
70 15
• 2031
CS.2
Cape Henlopen
38 47
75 05
1885. 6
4 59.6 W
70 39. 6
.1985
6 ooW
70 22
.1978
CS.di
Pilot Town
38 47
75 10
1846.5
2 42. 7 W
71 18.5
.1978
6 02 W
70 25
.1991
CS.di
Delaware Break-
38 48
75 06
1903.7
5 45. 7 W
._
5 50 W
__ _-
CS.4
water
Lewes Landing
38 49
75 12
1846. 5
2 45.0 W
_ - _ _
1 604W
__ _>
CS.d
Harrington
38 55
75 35
1899- 5
6 05. 6 W
70 29.9
.1999
6 24 W
70 32
.1986
CS.d2
Dover
39 09
75 31
1897.4
6 18.8 W
70 25. 4
.1998
6 42 W
70 25
. 1982
CS.d2
Bombay Hook
39 22
75 31
1899- 5
6 31.8 W
70 45. 4
. 1972
649W
70 47
•1959
CS.d2
Fort Delaware
39 35
75 34
1846. 5
3 16. 8 W
71 34-9
.1949
6 42 W
70 42
. 1962
CS.di
Newark
39 41
75 44
1899. 5
5 19. 6 W
71 04.0
•1973
538W
71 05
.1958
CS.d2
Sawyer
39 42
75 34
1846.4
2 48.3 w
71 57-5
.1925
6 16 W
71 06
•1938
CS.di
Wilmington i
39 45
75 33
1905. I
5 15.4 W
71 41.6
. 1890
5 15 W
71 42
. 1890
Si-5
Wilmington 2*
39 45
75 33
1905. I
10 54. 6 W
1 10 54 W
-- -■-
CS.5
DISTRICT OF COLUMBIA
Washington, C. and
G. S. Office
Washington, Naval
Obsy., old site
Washington, Naval
Obsy., new site
Washington, near
Zoological Park
• /
/
38 53
77 00
1905.8
38 54
77 03
1892.5
38 55
77 04
1894. 5
38 55
77 02
1905-5
•
o /
5 19.3 W
4 14. 2 W
3 40. o W
4 29. I W
/
69 58.3
c. g. 8.
.2028
71 03.9
.1985
70 34. 3
.1998
70 28. 3
.2009
I
/
5 16W
/
69 57
c. g. 8.
.2031
CS.6
454W
*7i 02
. i960
CS.di
4 13W
70 35
.1976
CS.di
427W
70 28
. 2010
CS.6
FLORIDA
/
/
/
/
c. g.s
/
/
c. g. s.
Sand Key
24 27
81 53
1849.6
5 28. 8 E
54 25. 8
.3116
2 41 E
54 52
.2928
CS.di
Key West
24 34
81 48
1906.2
2 30. 3 E
55 00.5
.2938
2 32 E
54 57
•2945
CS.6
Bird Key, Dry Tor-
tugas
Cape Sable base
24 37
82 54
1880.0
3 42.6 E
54 12.6
■3085
2 38 E
54 33
.2980
CS.di
25 08
8i 02
1855- 4
5 23 E
2 52 E
CS.d
Cape Florida, Key
Biscayne
25 40
80 10
1850. I
4 25. 2 E
56 13.0
.3050
I 39 E
5638
.2851.
CS.di
Miami
25 47
80 12
1905.5
I 37.2 E
56 33. 7
•2873
I 37E
56 33
.'2876
CS.5
Hills
26 16
80 05
1884.0
2 43. 1 H
57 01.6
I 51 E
57 29
CS.di
Punta Rassa
26 29
82 00
1906.3
I 58. 9 E
57 24.0
.2844
2 01 E
57 20
.2851
CS.6
Fort Myers
26 38
81 51
1906. 2
2 07. 9 E
57 22.9
.2852
2 09E
57 19
.2859
CS.6
Spencer
26 44
80 02
1884. 2
2 51. 6E
2 ooE
CS.d
Sugar Loaf Beach
26 46
80 56
1906.2
I 17. 3 E
58 00.5
.2796
I 19 E
57 57
.2803
CS.6
La Belle
26 46
81 26
1906. 2
I 54. 7 E
57 57.2
.2825
I 56 E
57 53
.2832
CS.6
Fort Jupiter
26 54
80 05
1880.2
2 50. 7 E
57 38.5
•2895
. I 46E
57 58
.2801
CS.di
Jupiter
Punta Gorda
26 56
80 03
1906. 2
I 41.7 E
58 03. 6
.2796
I 43 E
58 00
.2802
CS.6
26 57
82 03
1906.3
2 15.5 E
57 56.4
. 2810
2 17 E
57 53
.2817
CS.6
Ho. of Refuge, No. 2
27 12
80 10
1883. 1
2 35.9 E
57 43- 8
•2879
I 40 E
58 06
•2794
CS.di
Warners Camp
27 12
80 49
1906. 2
I 26.4 E
57 48.4
.2826
I 28E
57 45
.2833
CS.6
Arcadia
27 14
81 52
1903.3
2 00. 1 E
58 08. 7
.2816
I 58 E
58 15
.2808
I CS.3
Miccos Bluff
27 26
81 07
1906. 2
2 15.8 E
58 08.7
.2829
2 17 E
58 05
.2835
CS.6
Bell
27 28
80 20
1883. 3
2 12. I E
58 00.9
-2915
I 16 E
58 24
.2826
cadi
St. Lucie, Fort Ca-
pron
Turkey Hammock
27 29
80 15
1880.2
2 24. 9 E
58 16.8
.2903
I 19 E
58 36
.2811
CS.di
27 48
81 12
1906. 1
2 15. 7 E
59 13.8
.2716
2 17 E
59 "
.2722
CS.6
St. Petersburg
27 48
82 38
1903- 2
2 24. 4 E
58 48. 8
•2797
2 23 E
58 55
.2787
CS.3
Sebastian
27 49
80 28
1906. 2
I 16. 5 E
59 27 I
.2748
I 18 E
59 24
.2754
CS.6
Bartow
27 53
81 51
1903.3
I 29. 6 E
58 49.9
.2768
I 28 E
58 55
.2759
CS.3
Tampa
27 58
82 28
1903.3
2 12.4 E
59 00. I
.2797
2 II E
59 05
.2788
CS.3
Turkey Creek
Eau Gallic
28 04
80 35
1878.3
3 09. 1 E
I 57 E
CS.d
28 09
80 37
1903.3
I 05. 6 E
58 51.7
•2790
I 04 E
58 56
. 2782
, CS.3
Tarpon Springs
28 lO
82 45
1903- 2
I 55- I E
58 45.3
.2808
' I 53E
58 50
.2799
1 CS.3
Kissimmee
28 18
81 24
1906. I
I 43. 3 E
59 14.6
.2762
I I 45E
59 12
.2768
CS.6
Dade City
28 23
82 II
1903.2
2 01.3 E
59 14-3
.2768
2 00 E
59 19
.2758
, CS.6
Orlando
28 33
81 21
1903.3
1 I 06. 6 E
59 02.6
.2800
I 05 E
59 08
.2791
1 CS.3
26 MAGNETIC TABLES AND CHARTS FOR 1905.
Table I. — Observed magnetic elements and the values reduced to January j, 1^03 — Continued.
FLORIDA— Continued
Lati-
station
tude
N.
Brooksville
/
28 35
Titusville
28 38
Sumterville
28 46
Homosassa
28 48
Tavares
28 49
Inverness
28 51
Enterprise
28 53
Deland
29 03
Cedar Keys
29 08
Daytona
29 13
Ocala
29 13
Cape St. George
Palatka
29 37
29 38
Gainesville
29 39
Cape San Bias
29 40
Apalachicola
29 43
Dog Island Light
29 47
St. Augustine
29 54
Starke
29 58
Mayo
30 04
St. Marks Light
30 04
Hurricane Ids.
30 04
Perry
30 06
St. Marks
30t)8
Lake City
30 II
Baldwin
30 18
acksonville
'^iveOak
30 20
30 20
Pensacola Navy Yd.
30 21
Pensacola
30 25
Tallahassee
30 26
Pond
30 27
Sand String
30 27
Mill Point
30 28
Madison
30 29
Lindsay
30 30
Devil Point
30 30
Shield Point
30 35
Femandina
30 40
De Funiak Springs
30 43
Marianna •
30 47
Lonsri-
tude
W.ofGr.
Date
Observed
Reduced to 1905.0
Decl'n
/
Incl'n
/
H. Int.
Decl'n
1
1 ° '
Incl'n
H. Int.
1
/
c. g. s.
/
c.g.s.
1
82 24
1903.2 '
I 45. 4 E
59 23.8
•2775
I 44E
59 29
.2766
, CS.3
80 48
1903
3
54- E
59 27.8
•2750
1 51 E
59 33
.2741
' CS.3
82 04
1903
3
I 58. 8 E
59 51.7
•2734
1 ' 57 E
59 56
•2725
, CS.3
82 37
1903
2
2 09.4 E 1 59 47-9
.2740
' 2 08E
59 53
.2730
1 CS.3
81 44
1903
3
2 06. 5 E 60 14. 5
.2714
2 05 E
60 19
.2705
CS.3
82 20
1903
2
2 11.6E j 59 53-2
■2736
2 10 E
59 58
.2727
CS.3
81 14
1880
I
2 46. 1 E 60 07. 5
.2791
; ^ 39E
60 20
.2703
CS.di
81 18
1903
3 ,
I 31.2 E
60 00. 3
.2732
' I 30E
60 05
.2723
CS.3
83 02
1900
4
2 35. 7 E
59 57-4
.2732
I 2 30E
60 10
.2707
CS.d2
81 01
1906
3 ,
I 14- 4 E
60 41.9
. 2671
I I I6E
60 39
.2678
CS.6
82 08
1903
2
I 55. 8 E
60 17. I
•2737
1 I 54E
60 22
.2728
1 CS.3
85 06
1853
2 !
6 02. 1 E
_
3 17 E
-- --
1 CS.d
81 38
1900
3
I 13.0 E
60 40.4
. 2691
1 I 09E
60 53
.2666
I CS.d2
82 19
1900
3
2 159 E
60 47.5
.2694
' 2 12E
61 GO
.2669
' CS.d2
85 22
1854
I
6 06.5 E
i 3 24E
__ .-
1 CS.d
84 59
i860
6 12.0 E
60 19.4
.2852
348E
60 27
•2733
CS.d I
84 40
1853
3
5 51-2 E
3 06E
_ _ __
1 CS.d
81 19
1906
3 '
I 19- 5 E
61 23.3
.2636
I 18 E
61 20
•2643
CS.6
82 06
1903
2
2 06. 7 E
61 17.5
.2661
2 05 E
61 22
.2652
CS.3
83 12
1903
2
I 48. 6 E
61 05.9
.2697
I 47 E
61 II
.2688
CS.3
84 II
1852
3
5 29. 2 E
_•.
2 41 E
__ -_
CS.d
85 39
1854
I
6 12.2 E
3 29E
__
CS.d
83 35
1900
4
2 21. 2 E
61 04. 6
. 2691
2 16 E
61 17
.2667
i CS.d2
84 II
1875
4
4 30.3 E 1
_ _ __
3 04E
__ __
NA.d
82 38
1903
2
I 32.0 E 61 06.4
.2685
I 31 E
61 12
.2676
! CS.3
81 58
1900
3
2 05.6 E 61 25.0
.2652
2 02 E
61 37
. 2629
CS.d2
81 39
1900
3
I 17. 1 E
61 30.3
.2636
I 13 E
61 42
■ 2613
1 CS.d2
83 00
1903
2
I 40. E
61 23.9
.2669
I 38 E
61 30
.2660
CS.3
87 16
1900
4
4 27.2 E
60 49. 8
. 2720
4 25E
61 03
.2698
• CS.d2
87 13
1861
6 42. 2 E
60 38. 9
.2836
4 34E
60 51
. 2718
CS.di
84 18
1900
3
2 21.3 E
61 09.8
.2682
2 16 E
61 21
.2659
CS.d2
86 56
1894
2
4 22.0 E
4 08E
-_
CS.d
87 06
1894
3
4 50. 7 E
437E
--
CS.d
86 56
1894
2
4 26. 5 E
_
4 12 E
- - «..
CS.d
83 25
1900
3
2 28. 9 E 1 61 20. 5
.2663
2 25 E
61 32
. 2640
1 CS.d2
87 03
1894
3
4 43-6 E 1
-__ _
4 29E
._ _>
CS.d
87 09
1894
3
4 56.0E
4 42E
_- «_
' CS.d
87 01
1893
I
4 37.2 E
4 19 E
__ __
1 CS.d
81 27
1900
3
I 21. 1 E
61 48. 2
. 2627
I 17 E
62 00
.2605
CS.d2
86 07
1900
4
3 37.9 E
61 19.8
.2686
3 35E
61 32
.2664
CS.d2
85 13
1900.
4
3 42. 8 E
61 50.9
.2656
3 39E
62 03
■2634
CS.d2
GEORGIA
Valdosta
Thomasville
Bainbridge
Du Pont
Pelham
Brunswick
Way Cross
Do.
Butler, St. Simons I.
Cedar Point
Douglas
Albany
Jessup
IrwinviUe
Baxley
Cuthbert
Skiddaway, N. base
Lumber City
Tybee Light
Savannah
Reidsville
Mount Vernon
1905. 1
1900-3
1905. I
1905. I
1900.3
1887. 2
1905. I
1905.5
1872.2
1906.4
1905. I
1900.3
1905. 1
1903- I
1905.1
1903- I
1856.3
1875.5
1870.4
1903- 3
1905. I
1905. I
01.
21,
15
13
28,
48
12,
II,
2 42
48,
1 35
2 05
o 54
56
13
45-
25
10,
20
42
1 07
I 34
oE
5B
4 E
9g
I E
5E
2E
8E
9i
5E
1 E
6E
oE
oE
5g
oE
8E
5§
5E
I E
oE
61 54.
61 36.
61 44.
62 06.
62 02.
62 31.
62 20.
62 19.
62 46.
62 54.
63 II.
62 36.
62 53.
62 52.
63 03.
62 51.
c. g s.
8 . 2631
I j. 2660
7 I- 2641
5 '. 2616
7 ,.2637
9 '2595
9 . 2604
7 . 2602
63 27.0
63 25.3
63 10. o
63 18.8
.2657
.2554
.2565
. 2615
•2554
•25^2
•2545
.2579
2613 '1
2534 |i
2537 '
•2533 .
01 E
16 E
14 E
24 E
01 E
12 E
12 E
00 E
5'g
36 E
01 E
55 E
13 E
45 E
41 E
36 E
28 E
40 E
1 07 E
I 34 E
61 55
61 48
61 44
62 06
62 14
62 51
62 21
62 19
62 41
62 51
63 12
62 48
62 53
62 57
63 03
62 54
, 63 13
I 63 29
I 63. 10
63 19
c. g. s.
.2632
.2638
. 2642
. 2617
. 2614
■2536
.2605
. 2604
•2584
. 2561
.2566
•2592
•2555
•2544
•2546
•2570
•2544
.2527
■2538
.2534
CS.5
CS.d2
CS.5
CS.5
CS.d2
CS.di
CS.5
CS.5
CS.di
CS.6
CS.5
CS.d2
CS.5
CS.3
CS.5
CS.3
CS.d
NA.d
CS.di
CS.3
CS.5
CS.5
MAGNETIC ELEMENTS IN THE UNITED STATES. 27
Table I. — Observed magnetic elements and the values reduced to January j, ipo^ — Continued.
GEORGIA— Continued
Station
Hawkinsville
Oglethorpe
Buena Vista
Statesboro
Dublin
Swainsboro
Swainsboro (A)
Sylvania
Sylvania (A)
Millen
Macon
Thomaston
Sandersville
Do.
Louisville
Louisville (A)
Milledgeville
Lagrange
Waynesboro
Do
Gibson
Do
Jackson
Warrenton
Augusta
Do
Carrollton
Madison
Atlanta
Washington ^
Athens
Lawrenceville
Kenesaw
Cames
Sweat
Elberton
Cumming
Sawnee
Rome
Gainesville
Pine Log
Lavender
Grassy
Skitt
Currahee
Clarkesville
Johns
Blue Ridge
Trenton
Luti-
tude
N.
32 17
32 17
32 20
32 27
32 33
32 36
32 36
32 45
32 45
32 46
32 51
32 54
32 59
32 59
33 01
33 01
33 04
33 04
33 06
33 06
33 15
33 15
33 18
33 23
33 28
33 28
33 35
33 37
33 44
33 45
33 58
33 58
33 i9
34 00
34 04
34 08
34 12
34 14
34 15
34 18
34 19
34 19
34 29
34 30
34 32
34 37
34 37
34 52
34 55
Longi-
tude
W.ofOr.
83 28
84 04
84 32
81 47
82 59
82 20
82 20
81 42
81 42
81 57
83 37
84 20
82 47
82 47
82 25
82 25
83 16
85 02
82 01
82 01
82 35
82 35
83 58
82 40
81 57
81 57
85 03
83 30
84 22
82 44
83 22
84 00
84 35
85 01
84 27
82 47
84 08
84 10
85 08
83 52
84 38
85 17
84 20
83 43
83 23
83 29
85 06
84 21
85 30
Date
905- I
900- 3
905- I
904.2
905- I
905.0
905.0
905.0
905.0
875- 5
905- 1
905. 1
905- 1
905- 1
905. 1
905- 1
900. 2
905.1
905.0
905.0
905. I
905. I
905- I
900. 2
905.0
905.0
905.0
905.2
905.0
905 2
905.2
874.9
873.6
874.0
873.8
905.2
873.9
873.8
896.3
905.2
874.6
874.9
874.6
874.6
874.8
905.2
875.1
905.2
903. 9
Observed
Decl'n
1 48. 4 E
2 11. 7 E
I 56. 2 E
51.9 E
1 28. 8 E
I 07.5 E
1 07.0 E
o 34. 9 E
o 37-7 E
2 37.3 E
01.8 E
58. 8 E
31. 4E
32.2 E
46.8 E
45.0 E
41.9 E
08.2 E
o 49 3 E
35.6E
1 27.3 E
I 26. 8 E
I 41. 1 E
1 15. 6 E
o 44.3 E
38.9 E
2 36. 2 E
1 19. 2 E
I 39- 9 E
I II. I E
1 18.4 E
3 24. 8 E
4 43- 4 E
4 05.5 E
5 36. 9 E
49. I E
3 13.5 E
2 55. oE
2 17.5 E
1 05. 3 E
4 00. o E
3 58.9 E
3 36. o E
2 35-5 E
2 47- 9 E
I 13. 8 E
3 57. I E
1 50. 4 E
2 34- 2 E
Ind'n
63 20. 8
63 II. 4
63 19. I
63 43. 4
63 34-4
63 56. 2
63 51.7
64 04. 3
64 03. I
64 07. 8
63 49.0
64 29. 6
64 28. 8
64 38. 3
64 36.0
64 39. I
64 00. 4
64 39. 5
64 36. 4
64 45. I
64 42. 7
64 26.
64 40.
64 58.
64 58.
64 41.
64 34. 6
64 50. 3
64 50.6
65 13.2
65
65
66 00. 2
65 09.6
65 29. 2
65 19.8
65 23.5
65 26. o
10. 7
16.4
65 33- o
65 30.7
I 65 41.8
I 65 45. I
: 65 50. 8
65 42. 5
66 05.4
66 06. 2
H. Int.
c. g. s.
•2534
.2565
.2556
■2517
.2528
.2512
• 2512
.2506
.2506
.2488
.2510
■2465
.2465
•2454
.2455
.2473
• 2510
.2463
.2469
•2448
■2445
.2479
.2458
2429
2429
2458
.2463
.2454
•2434
.2419
•2495
•2515
.2509
.2411
• 2512
.2489
.2448
. 2421
. 2494 I
. 2498 I
. 2394
.2435 I
.2388
.2484
•2364
.2393
Reduced to 1905.0
Decl*
/
I 48 E
2 10 E
I 56 E
51 E
I 29 E
I 08 E
I 07 E
35 E
38E
I 00 E
2 02 E
I 59 E
I 31 E
I 32 E
I 47 E
I 45 E
2 37 E
2 08 E
49 E
36E
I 27 E
I 27 E
I 41 E
I 09 E
44 E
39 E
2 36 E
I 19 E
I 40 E
I II E
I 19 E
I 52 E
3 06E
2 31 E
4 01 E
49 E
I 39 E
I 21 E
2 01 E
I 06 E
2 29 E
2 i8 E
2 03 E
I 01 E
I 12 E
I 14E
2 27 E
I 50 E
2 33 E
Incl'n
63 21
63 21
63 19
63 45
63 34
63 56
63 52
64 04
64 03
64 08
63 49
64 29
64 29
64 38
64 36
64 49
64 00
64 40
64 36
64 45
64 42
64 26
64 50
64 58
64 58
64 42
64 34
64 50
64 50
65 13
65 59
65 09
H. Int.
c. g. s.
2535
2544
2557
2514
2528
2512
2512
2506
2506
2488
2510
2465
2465
2454
2455
2453
2510
2463
2469
2449
2446
2480
2439
2429
2429
2458
2464
2454
2435
2420
65
28
65
19
65
22
65
25
65
25
65
16
65
32
65
30
65
40
65
44
65
50
65
42
66
05
66 08
Source
CS.5
CS.d2
CS.5
CS.4
CS.5
CS.5
CS.5
CS.5
CS.5
NA.d
CS.5
CS.5
CS.5
CS.5
CS.5
CS.5
CS.d2
CS.5
CS.5
CS.5
CS.5
CS.5
CS.5
CS.d2
CS.5
CS5
CS.5
CS.5
, CS.5
; CS.5
I CS.5
! CS.d
CS.di
CS.d I
CS.di
CS.5
CS.di
CS.di
CS.di
CS.5
CS.di
CS.di
CS.di
CS.d
CS.di
CS.5
CS.di
CS.5
CS.4
IDAHO
/
/
/
^
c. g. s.
/
/
c. g. s.
1
Malad City
42
II
112
15
1905.4
18 08. 7 E
68 22.0
.2176 !
18 07 E
68 22
.2177
i CS.5
Soda Springs
Minidoka
42
39
III
36
1905.4
19 27- 2 E
68 54. 5
.2131
19 26 E
68 54
.2132
1 CS.5
42
45
113
26
1905.5
18 16.6 E
68 20.8
.2188 ,
18 15 E
68 20
.2189
' CS.5
Pocatello
42
51
112
26
1905.4
18 08.5 E
68 56. I
.2131 '
18 07 E
68 56
.2132
. CS.5
Shoshone
42
56
114
25
1905.5
19 22.0 E
69 21.0
. 2056
19 20 E
69 21
•2057
1 CS.5
Mountain Home
43
08
115
42
1905.5
, 18 58.6 E
68 18.3
. 2160 '
18 57 E
68 18
. 2161
1 CS.6
Blackfoot
43
II
112
19
1905.5
1 19 56. I E
69 03.7
.2113 1
19 54 E
69 03
. 2114
' CS.5
Hailey
43
31
114
19
1905.5
19 17.3 E
69 01.8
.2113 1
19 15 E
69 01
.2113
CS.6
Arco
43
37
113
18
1905.5
19 34. 8 E
69 28.4
■2075
19 33 E
69 28
•2075
CS.5
Boise
43
37
116
12
1905.5
19 10. E
68 58. 7
.2097
19 08 E
68 58
.2097
' CS.6
St. Anthony
43
58
III
43
1906.7
1 18 57. 4 E
70 05.4
.2035 1
18 52 E
70 04
.2035
CS.7
Dubois
44
10
112
II
1905.5
18 12.0 E
70 15.4
. 2046
18 10 E
70 15
.2047
CS.5
Weiser
44
16
116
58
1905.5
20 41. 6 E
69 04. 5
.2114
20 40 E
69 04
.2114
CS.6
Challis
44
31
114
15
1906. 7
19 17.0 E
70 12.5
. 2006 ii
19 II E
70 II
. 2008 1
CS.7
28 MAGNETIC TABLES AND CHARTS FOR 1905.
Table I. — Observed magnetic dements and the values redttced to January j, 1Q03 — Continued.
IDAHO— Continued
SUtion
Lati-
tude
Longi-
tude
1
Date
Observed
Reduced to 1905.0
,
N.
W. of Or.
Decl'n
Ind'n
H. Int.
Decl'n
Incl'n jH. Int.
/
/
/
/
c. g. s.
/
/
c. g. s.
CouncU
44 44
116 26
1905-5
19 55- oE
69 54.3
.2053
19 53 E
69 54
•2054
CS.6
Salmon
45 "
"3 54
1906.7
20 26. 2 E
70 33. 4
. 2002
20 21 E
70 32
.2004
CS.7
Grangeville
45 56
116 07
1906.6
21 15.6 E
70 55.0
. 1988
21 10 E
70 54
.1990
S?-7
Lewiston
46 24
117 02
1906.6
21 57.0 E
71 05.0
.1944
21 52 E
71 04
.1946
CS.7
Pierce
46 29
115 48
1906.6 1
21 43.8 E
71 16.8
.1923
21 39 E
71 16
.1925
CS.7
Harrison
47 27
116 47
1906.7 !
22 32.8 E
72 22.8
. 1864
22 27 E
72 22
.1866
CS.7
Murray
47 38
"5 51
1905.6 1
22 25.0 E
72 06.2
.1858
22 23 E
72 06
•1859
CS.6
Lake Pend d'Oreille
47 58
116 30
1881.7 '
22 05.4 E
72 26.0
.1847
22 38 E
72 39
. 1829
CS.di
Magnetic Station
48 10
116 45
1860.0
21 49 E
-- -_- -
22 06 E
CS.dt
Siniaquoteen
Pack River
48 10
116 45
1881.7 ,
22 28. 5 E
72 30.7
. 1830
23 01 E
72 44
. 1812 '
CS.di
48 22
116 28
1861.5
22 51 E
72 45-5
. 1830
23 II E
72 53
. 1812.I
CS.di::
CS.di:;
Chelemta Depot
48 41
116 19
1861.5 1
22 II E
73 08.
. 1804
22 31 E
73 16
. 1786
Magnetic Station
48 42
116 19
1860.0 1
22 16 E
-___
I 22 32 E
CS.dt
Bonners Ferry
48 42
116 19
1906.6
23 24. 5 E
73 03. I
•1763
1 23 19 E
73 02
. 1764 1
CS.7
Moyie River
49 00
116 II
1905. 8
23 43- 4 E
73 07. I
.1755
1 23 41 H
73 07
.1755
CS.6
Porthill
49 00
116 30
1905.7 1
23 30. 1 E
73 03. 6
•1756
1 23 28 E
73 03
• 1756 !
CS.6
Magnetic Station
49 00
^16 33
1860.0
22 37 E
j 22 56 E
CS.dt
Summit Lake
49 00
116 56
1905.7
23 40. E
73 01.2
. 1762
23 38 E
73 01 . 1763
CS.6
ILLINOIS
Cairo
Mound City
Golconda
Marion
McLeansbpro
New Athens
Nashville
Sandoval
CoUinsville
Olney
Higmand
Emngham
Hillsboro
Macon
Tuscola
Springfield
Beardstown
Danville
Havana
Paxton
Bloomington
Knoxvtlle
Wenona
Ottawa
Princeton
Toliet
Rock Island
Mount Forest
Shabbona
Chicago, old univ. site
Chicago, near water
tower
Chicago
Rockford
Do.
Woodstock
Freeport
Waukegan
Galena
Dunleith
37 01
37 05
37 23
37 45
38 06
38 19
38 20
38 37
38 39
38 44
38 44
39 09
39 10
39 42
39 48
39 50
40 00
40 07
40 18
40 27
40 31
40 54
41 05
41 20
41 23
41 29
41 31
41 45
41 47
41 50
'41 54
41 56
42 17
42 17
42 19
42 19
42 22
42 25
42 28
89 10
89 04
88 25
88 55
88 32
89 55
89 22
89 10
90 04
88 05
89 4»
88 33
89 30
89 01
88 16
89 39
fy> 29
87 35
90 02
88 05
88 59
90 18
89 01
88 50
89 27
88 II
90 34
87 52
88 54 ,
87 37 I
87 37 j
87 37
89 06
89 07
88 25
89 36
87 49
90 26
90 40
877.9
865 . o
872.5
905.9
900.9
880.8
900.9
896.3
879.7
905.9
905.6
905.6
905.4
872.7
905.6
891.8
880.6
900.8
905.4
905.6
905.4
905.4
872.7
891.7
905- 5
905.5
878.7
876.7
905.5
888.6
891.5
900.9
891.7
876.8
905.8
905.5
904.8
876.7
856.8
6 00.4 E I 67 45.6
E
8E 67 55.9
6 E I 68 05. 5
8 E ' 68 44. 6
I E
2E
8 E
2E
4K
9 E
I E
9E
5E
1 E
7|
4E
8E
9^
2 E
6E
8 E
I E
5E
7g
3E
8E
6E
3E
4 E
3E
3 57.8 E
3 59. 9 E
5 18. 3 E
2 46. 9 E
4 29. 6 E
2 39- 8 E
9 08. 7 E
8 35- oE
69 20. 1
69 29. 2
69 38.2
69 41.2
69 41.5
70 01. 6
69 55.8
o 13. 5
33-2
17.5
18.6
50.1
o 48. 3
03.9
53.6
22.5
43.9
II. o
49.2
13.0
15.3
52.8
02.8
28.5
22. 6
32.9
38.2
48.3
56.3
47.6
40
09.0
10
c. g. s.
.2332
.2252
.2250
.2195
.2153
. 2122
.2132
.2095
.2120
. 2072
. 2080
.2063
.2033
. 2064
. 2060
. 2020
. 2012
• 1999
•1998
.1972
.1955
. 1912
. 1924
. 1886
. 1940
. 1831
. 1908
.1863
.1874
.1858
■1859
. 1882
.1826
.1834
. 1804
. 1841
4 46E
5 36E
4 20 E
4 44E
4 02 E
4 48E
4 19 E
4 34E
5 22 E
3 32E
4 40 E
4 25 E
4 34E
3 46E
3 57E
4 20 E
5 41 E
2 33 E
4 59E
3 33E
3 31 E
5 25E
4 21 E
4 29E
4 28 E
2 53 E
5 35 E
2 51 E
3 55 E
3 17E
2 54 E
53 E
22 E
36 E
48 E
30 E
40 E
28 E
32 E
67 39
67 40
68 05
68 49
69 24
69 33
69 33
69 40
69 41
70 01
69 55
o 01
33
19
17
54
48
03
53
22
33
II
49
12
II
41
02
27
24
35
44
41
56
47
40
02
56
c. g. s.
.2306
2226
2251
2190
2148
2112
2116
2096
2121
2073
2180
2045
2034
2052
2043
201 1
2013
2000
1999
1973
1927
1895
1925
1887
1916
1800
1909
1841
1854
1850
1844
1849
1827
1835
1804
1808
CS.di
CS.d
NA.di
CS.6
CS.d2
Nl.d
CS.d2
CS.di
Nl.di
CS.6
CS.6
CS.6
CS.5
NA.di
CS.6
CS.di
Nl.di
CS.d2
CS.5
CS.6
CS.5
CS.5
NA.di
CS.di
CS.5
CS.6
LS.di
LS.di
CS.6
CS.di
CS.di
CS.d2
I CS.di
LS.di
CS.6
CS.5
LS.3E
LS.di
AA.di
t U. S. Northwest Boundary Commission; J. S. Harris, observer; revised results.
X Boundary Survey; R. W. Haig, observer; Phil. Trans. R. S., 1864.
MAGNETIC ELEMENTS IN THE UNITED STATES. 29
Table I. — Observed magnetic elements and the values reduced to January i, 1905— ^Continued.
INDIANA
1 Observed
Reduced to xoos.o
Lati-
^^"
,
1 c....^
Station
tude
tudc
Date
1 Source
N.
W.ofGr.
Decl'n
1
Incl'n
H. Int.
Decl'n
IncFn
H.Int.
Evansville
/
37 59
/
87 28
1900.9
1
/
i 3 49. 6 E
/
69 01.8
eg s.
. 2167
/
345E
/
69 07
c. g. s.
.2158
! CS.d2
New Harmony
38 oS
87 56
1880
8
5 05. 1 E
69 02.6
. 2196
358E
68 58
.2170
1 CS.di
New Albany
38 20
85 47
1871
9
70 21.9
. 2059 1
70 06
. 2026
NA.I
ftr
38 24
86 56
1905
9
3 01. E
69 41.8
.2093
3 02 E
69 41
.2095
1 CS.6
38 32
86 27
1900
7
2 35. 2 E
69 26. I
.2130 1
2 30E
69 32
.2121
CS.d2
Vincennes
38 40
87 31
1905
9
i 3 08. 8 E
69 41.6
. 2098
3 10 E
69 40
. 2100
i CS6
Madison
38 42
85 27
1900
7
' I 36. 1 E
69 56.3
. 2073 1
I 30 E
70 02
.2063
CS.d2
Brownstown
38 52
86 02
1905
8
I 29.0 E
70 09.6
• 2054
I 30 E
70 09
.2056
1 CS.6
Bloomfield
39 02
86 56
1900
7
2 45. 8 E
69 56.4
.2085 1
2 40E
70 61
. 2076
CS.d2
Lawrenceburg
39 06
84 52
1905
9
I 04. 8 E
70 II. 4
.2066 1
I 06E
70 II
.2068
CS.6
Columbus
39 09
85 58
«905
9
I 26. 8 E
70 26.6
. 2016
I 28 E
70 26
.2018
CS.6
Bloomington
39 10
86 32
1905
8
2 15.9 E
70 II. 9
.2060
2 17 E
70 II
.2062
CS.6
Greensburg
Martinsville
39 25
85 29
1900
7
2 II. 4 E
70 22.3
.2044
2 04 E
70 27
.2033
CS.d2
39 25
86 24
1900
7
2 19. 2 E
70 21.4
. 2050
2 13 E
70 26
. 2040
CS.d2
Terre Haute
39 30
87 23
1900
7
2 44.0 E
70 16.9
.2054
2 38 E
70 21
.2044
CS.d2
39 38
86 51
1905
8
2 45. 2 E
70 40. 6
. 2018
2 46E
70 40
.2020
CS.6
Indianapolis
39 47
86 12
1900
7
I 21. 1 E
70 48.0
. 2007
I 15 E
79 52
•1997
CS.d2
Richmond
39 50
84 53
1900
7
I 39- 2 E
70 57. I
. 1992
I 32 E
71 01
. 1980
CS.di
CrawfordsviUe
40 03
86 52
1900
8
2 22. 1 E
70 56.6
. 2002
2 16E
71 01
.1991
CS.d2
Anderson
40 07
85 42
1905
8
I 52.0 E
71 02.6
.1984
I 53 E
71 02
.1986
CS.6
Hartford City
40 29
85 23
1900
8
I 56. 6 E
71 27.8
• 1937
I 50 E
71 31
.1927
CS.d2
Kokomo
40 31
86 05
1900
8
I 48. 8 £
71 08.4
.1976
I 42 E
71 II
•1965
CS.d2
Reynolds
40 45
8653
1905
8
I 52.5 E
71 47.8
• 1923
I 53 E
71 47
.1925
CS.6
Kentland
40 45
87 27
1905
5
2 49. 6 E
71 27.1
• 1963
2 50E
71 27
.1964
CS.6
Wabash
40 48
85 49
1905
8
45.8 E
71 52.7
. I9I2
47E
71 52
.1914
CS.6
Fort Wayne
41 06
85 08
1900
8
12.8 E
72 00.6
.1929
05 E
72 03
.1917
CS.d2
Warsaw
41 12
85 52
1900
8
I 00.4 E
71 56. I
• 1905
53E
71 58
.1894
CS.d2
San Pierre
41 12
86 53
1905
8
I 43.4 E
71 58.5
• I9I3
I 44E
71 58
.1915
CS.6
Albion
41 24
85 26
1905
8
I 21.4 E
72 10.4
.1883
I 23 E
72 10
.1885
CS.6
South Bend
41 40
86 14
1900
8
I 25.4 E
72 05.9
.1898
I 18 E
72 08
.1887
CS.d2
Michigan City
41 43
86 55
1900
9
I 45- 6 E
72 15.1
.1882
I 39 E
72 17
. 1870
CS.d2
Michigan City (A)
41 43
86 54
1873
7
3 590E
72 43
.1886
2 04E
72 24
.i860
LS.di
Michigan City (B)
41 43
86 54
1904
8
I 50- 2 E
""
. I87I
I 50 E
72 22
. 187I
LS.3E
IOWA
Keokuk
Corydon
Burlington
Fairfield
Osceola
Red Oak
Ottumwa
Creston
Council Bluffs
Washington
Oskaloosa
Atlantic
Davenport
Menlo
Des Moines
Logan
Iowa City, univ.
Iowa City, Nipher F.
Newton
Marengo
Clinton
Onawa
Boone
Carroll
Anamosa
Eldora
Ida Grove
Dubuque
Manchester •
40 23
40 44
40 48
41 00
41 01
41 01
41 02
41 03
41 14
41 15
41 18
41 22
41 30
41 31
41 36
41 39
41 40
41 40
41 42
41 46
41 50
42 01
42 02
42 02
42 07
42 21
42 21
42 29
42 29
91 23
93 19
91 08
91 59
93 45
95 "
92 25
94 19
95 52
91 42
92 39
94 58
90 38
94 23
93 36
95 47
91 32
91 36
93 04
92 04
90 13
96 04
93 54
94 50
91 15
93 05
95 27
90 40
91 27
1905
1900
1900
1900
1900
1900
1888
1900
1900
1900.
1900.
1900
1888
1900.
1888
1900,
1878
1879
1900,
1900.
1902
1900
1900
1900
1900
1900
1900
1900
1900,
/
/
5 58.4 E
70 38. 2
8 13. 6 E
71 02.6
6 05. 2 E
71 21.9
6.5I.3E
71 10.3
7 08. 2 E
71 22.2
8 43.4 E
70 26.6
7 49- 2 E
71 147
9 00. d E
71 03.8
9 32. 2 E
71 04.8
6 42.5 E
71 30.4
7 58. 2 E
71 37.4
10 01. 2 E
71 07.0
6 09. I E
71 50.8
7 40. 5 E
71 22.8
! '75 E
71 25.9
8 33. 2 E
70 53-4
8 36. 8 E
72 19-7
8 54. 7 E
72 02.7
7 52.8 E
71 33-4
6 49. 5 E
71 513
3 51. 2E
72 23.5
II 46. E
71 16.9
6. 56. 7 E
71 48.0
9 09. 2 E
71 37-8
6 34-4 E
72 II. 2
7 51. oE
72 o8,o
9 23. oE
71 53-6
5 30. 2 E
72 50.4
5 21. 4E
73 07. I
c. g. s.
. 2021
2005
1974
1997
1973
2055
. 1988
2010
1993
1943
1931
1990
1947
1967
1966
2016
1895
1900
1941
1929
1884
2005
1944
1942
1893
1 901
1936
1822
1807
5 58 E
8 18 E
6 06 E
6 52E
7 12 E
8 49E
7 18E
9 04 E
9 37E
6 44E
8 01 E
10 06 E
5 35 E
7 44E
7 57 E
8 39E
7 20E
7 42E
7 56 E
653E
3 52E
11 51 E
7 01 E
9 14E
6 33E
7 54E
9 28E
5 29E
5 20E
/
70 38 .
71 08 .
71 26 .
71 15 •
71 27 .
70 31 •
71 08 .
71 09 .
71 35 •
71 42 .
71 12 .
71 51 •
71 27 .
71 26 .
70 58 .
72 14 •
71 58 .
71 38 .
71 56 .
72 26 .
71 21 .
71 52 .
71 42 .
72 15 •
72 12 .
71 58 .
72 54 •
73 II .
c. g. s,
2022
1996
1965
1988
1964
2046
1970
2001
1984
1934
1922
1981
1927
1958
1950
2007
1875
1880
1932
1920
1880
1998
1935
1933
1885
1892
1929
1814
1799
CS.5
CS.d2
CS.d2
CS.d2
CS.d2
CS.d2
CS.di
CS.d2
CS.d2
CS.d2
CS.d2
CS.d2
CS.di
CS.d2
CS.di
CS.d2
NE.di
Nl.di
CS.d2
CS.d2
Weldt
CS.d2
CS.d2
CS.d2
CS.d2
CS.d2
CS.d2
CS.d2
CS.d2
t Observer, Professor L. D. Weld, Coe College, Cedar Rapids, Iowa.
30 MAGNETIC TABLES AND CHARTS FOR 1905.
Table I. — Observed magnetic elements and the values reduced to January j, 1^03 — Continued.
IOWA— Continued
KANSAS
SUtion
Lati-
tude
N.
Longi-
tude
W.ofGr.
Date
Observed
Reduced to 1905.0
Ded'n
Incl'n
H. Int.
Decl'n
Incl'n
H. Int.
Source
/
/
/
r
c.g.s.
/
/
C.g.s.
1
Waterloo
42 29
92 22
1900.6
7 14- oE
72 36.4
■ 1851
7 14E
72 40
. 1842
CS.d2
Sioux City
42 29
96 28
1905-6
9 42.4 E
72 21.4
.1876
.1885
9 41E
72 21
.1877
CS.6
Fort Dodge
42 30
94 12
1900.6
1 7 27.6 E
72 17- 5
7 32E
72 22
.1876
CS.d2
Fonda
42 35
94 50
1900.7
' 9 04. 2 E
72 18.6
. 1888
9 09 E
72 23
.1880
CS.d2
Hampton
42 44
93 II
1900. 6
1 6 06. 7 E
72 35.2
• 1873 1
6 09E
72 40
.1864
CS.da
Cherokee
42 45
95 34
1900.7
' 10 28.3 E
72 06. 6
• 1945 1
10 33 E
72 II
• 1937
CS.d2
Lemars
42 48
96 10
1900.7
1 10 01. 7 E
72 23.6
. i860
10 07 E
72 28
• 1853
CS.d2
West Union
42 54
91 50
1900. 6
1 4 21. 4E
73 33-3
• 1772
4 22 E
73 37 •
• 1763
CS.d2
Charles City
43 03
92 41
1900.6
1 7 12.4E
72 58.8
. 1829
7 14 E
73 03
. 1822
CS.d2
Emmetsburg
43 04
94 42
1900. 6
1 10 02. 6 E
72 32.6
. i860
10 06 E
72 37
.1853
CS.d2
Gamer
43 05
93 36
1900. 6
9 II. E
72 513
.1844
9 13E
72 56
.1835
CS.d2
Hartley
43 10
95 29
1900.7
9 15. 2 E
72 II. 6
. 1897
9 20 E
72 16
. 1888
CS.d2
Perkins
43 II
96 II
1900.7
9 450E
72 17.8
•1893
9 51E
72 22
. 1889
CS.d2
Decorah
43 18
91 49
1900.6
1 5 22.9 E
73 42.9
• 1753
5 24E
73 47
• 1744
CS.d2
Sibley
43 24
95 43
1891.6
1 941.9E
72 513
.1834
9 32E
72 56
. I8I0
CS.di
Northwood
43 27
93 16
1900. 6
6 57.1 E
73 17.2
. 1808
6 59E
73 21
. 1 801
CS.d2
Liberal
Sedan
Anthony
Oswego
Ashland
Hugoton
Independence
Winfield
Richfield
Wellington
Coldwater
Medicine Lodge
Meade
Parsons
Howard
Fredonia
Girard
Erie
Greensburg
Kingman
Pratt
Wichita
Dodge City
Humboldt
Eldorado
Cimarron
Eureka
Fort Scott
Yates Center
Kinsley
Lakin
Garden City
St. John
Syracuse
Hutchinson
Coolidge
Jetmore
Sargent
Newton
Mound City
Lamed
Burlington
Garnett
Marion
Lyons
Great Bend
McPherson
Cottonwood Falls
37 05
37 08
37 09
37 II
37
37
37
37
37
37
37
37
37
13
14
15
16
17
17
18
19
37 20
37 28
37 31
37 32
37 34
37 37
37 38
37 41
37 43
37 46
37 49
37 49
37 49
37 50
37 50
37 54
37 56
37 58
37 58
37 59
38 01
38 04
38 04
38 05
38 05
38 06
38 08
38 II
38 12
38 16
38 21
38 22
38 22
38 23
38 24
100 55
96 13
98 02
95 08
99 45
loi 21
95 44
96 59
loi 46
97 24
99 20
98 35
100 22
95 16
96 15
95 50
94 51
95 13
99 17
98 06
98 46
97 17
100 02
I 95 26
96 50
100 21
I 96 14
94 43
95 44
99 24
loi 17
100 53
98 45
loi 45
97 56
102 01
99 53
loi 58
97 19
94 50
99 07
95 48
95 17
97 01
98 II
98 47
97 37
96 32
1902.9
1902.6
1902.9
1902. 6
1902.9
1902. 9
1902.6
1904. 6
1900.9
1902. 8
1902.9
1902.9
1902.9
1904. 8
1902. 6
1902. 6
1902. 6
1902.6
1904. 9
1904. 6
1904. 6
1904- 5
1904.9
1878.6
1904- 5
1904.
1902
1902
1902
1904
1904
1904
1904
1903
1904.6 I
1903. 3
1904.9 I
1878.6 ,
1904
1902
1904
1900
1900
1904
1904. 6
1904. 8
1904. 6
1904- 5
II 22. 8E
8 52.2 E
9 13. 6 E
9 05.4 E
II 09. 4 E
II 37-4E
8 58.4 E
9 26. 5 E
II 42.8 E
9 37- I E
II 21.5 E
II 05.6 E
II 09. o E
8 31-6E
9 14. 6 E
9 34- 6 E
8 49. 6 E
8 12. 4E
II 00.5 E
9 53.6 E
10 21. 2 E
10 12. 2 E
11 38. 5 E
10 04. 9 E
9 41. 8E
10 32.0 E
9 49- 8 E
8 07.8 E
9 310E
10 43. 4 E
12 14- 3 E
11 46. 6 E
10 30. 7 E
11 40. 6 E
9 52.7 E
12 02.5 E
11 22. 2 E
12 44- 3 E
9 32. I E
7 40. 7 E
10 44. 2 E
9 27. 6 E
9 34- o E
.9 03. 5 E
10 16.0 E
10 17.5 E
10 18.9 E
9 12.4 E
66 01. o
67 02. 2
66 45.0
66 54.4
66 18.5
66 08.3
67 05.5
67 06. o
65 58.4
66 55- 5
66 20. 5
66 46. 7
66 07. 7
67 18. 2
67 25. 8
67 28.3
67 30. I
67 27.5
66 55. I
67 15.5
67 01. 2
67 31- 4
66 40. 8
67 19.0
66 39- 3
, 67 23.6
I 67 34.4
67 44.4
I 67 02.3
I 66 40. 5
66 49. 5
1 67 16.8
66 49. 9
67 29.9
66 56. 2
67 21.0
66 50.5
67 12.5
68 01.9
67 26. 9
67 28.9
68 17.7
67 47.6
67 53- I
67 43.6
67 46.3
67 37- 7
c. g. s.
•2391
.2323
•2341
.2329
•2365
■2373
.2323
.2319
.2390
•2334
.2360
•2345
.2394
.2304
. 2280
. 2290
.2278
. 2296 I
.2321
.2295
.2314
•2255
•2341
•2275 I
.2343
. 2280
.2275
2254
.2311
2337
2329
2305
2331
2276
2321
2291
.2365 i
.2312 j
. 2238
. 2288 I
2295 I
2228
2262 I
2243 1
2247 I
2268 ^
2276 I
9
II
II
II
II 31 E
8 59E
9 20E
9 12 E
II 15 E
II 44E
9 06E
9 28E
II 53 E
42 E
27 E
12 E
14 E
8 32E
9 22 E
9 42E
8 57E
8 20 E
II 01 E
9 55E
10 23 E
10 14 E
11 39 E
9 09 E
9 43E
10 32 E
9 57E
8 15E
9 38E
10 44 E
12 14 E
11 47 E
10 32 E
11 47 E
9 54E
12 07 E
11 22 E
12 10 E
9 34E
7 48E
10 44 E
9 37E
9 44E
9 05E
10 17 E
10 18 E
10 20 E
9 14E
/
c.g.s.
66 04
.2385
67 06
.2315
66 48
.2335
6659
.2322
66 22
•2359
66 12
.2367
67 10
.2316
67 07
.2318
66 04
•2378
66 59
.2328
66 24
•2354
66 50
•2339
66 II
.2388
67 18
.2304
67 29
•2273
67 32
.2283
67 34
. 2271
1 67 31
. 2289
6655
.2321
67 16
■2294
67 02
•2313
1 67 32
•2254
66 41
1
•2341
67 ^9
•2274
1 66 39
•2343
67 27
.2272
67 38
.2267 1
67 48
. 2246 1
67 02
.2310 1
66 41
.2337
.66 50
.2329
67 17
.2305
66 52
.2326
67 30
•2275 1
6659
•2317
67 21
. 2290
67 02
•2331
67 13
.2310
68 06
. 2229
67 27
. 2288 ,
67 36
. 2282
68 24
•2215 ,
67 48
.2261 1
67 54
•2242
67 44
• 2247 1
67 47
. 2267
67 38
•2275 1
CS.3
CS.3
CS.3
CS.3
CS.3
CS.3
CS.3
CS.5
CS.d2
CS.3
CS.3
CS.3
CS.3
CS.5
CS.3
CS.3
CS.3
CS.3
CS.5
CS.5
CS.5
CS.5
CS.5
CS.d
CS.5
CS.5
CS.3
CS.3
CS.3
CS.5
CS.5
CS.5
CS.5
CS.3
CS.5
CS.3
CS.5
CS.di
CS.5
CS.3
CS.5
CS.d2
CS.d2
CS.4
CS5
CS.5
CS.5
CS.4
MAGNETIC ELEMENTS IN THE UNITED STATES.
31
Table I. — Observed magnetic elements and the values reduced to January j, igo^ — Continued.
KANSAS— Continued
Observed
«
Lati-
Loniri-
station
tude
tude
Date
N.
W.ofOr.
Decl'n
Incl'n
H. Int. 1
Emporia
/
38 25
/
96 12
1904- 5
/
9 57.oE
f
67 56. 3
1
c.g.s.
. 2256
. 2267 [
Ness City
38 28
99 54
1904.9
" 15
•^i
67 40. 7
Dighton
38 30
100 28
1904. 9
II 17
.oE
67 33.8
.2277
Scott
38 30
100 54
1904. 9
12 04
•5g
67 16.0
.2300
Leoti
38 30
loi 21
1904.9
12 22
.6E
67 26.7
.2275
Tribune
38 30
lOI 46
1904. 8
12 14
.oE
67 08. I
. 2298
Paola
38 34
94 52
1902.5
8 32
oE
68 31.1
.2199
La Crosse
38 36
99 16
1892. 7
11 03
.9E
Ottawa
38 37
95 16
1902.5
8 18
.6E
68 28.4
.2214
Lyndon
Skaggs
38 37
99 41
1900.5
9 57
5g
68 52.0
.2183
38 40
99 45
1893.5
10 59
•4E
- .
Council Grove
38 41
96 30
1904- 5
9 18
oE
68 16.3
.2230
Fairmount
38 41
99 00
1892.6
II 06
.3E
_
Schmidt
38 42
100 03
1893- 5
II 30
.8E
'
EUsv/orth
38 44
98 14
1904.6
10 06
•^s
68 04. 3
. 2240
Smoky Hill
38 44
99 33
1893- 6
II 12
.lE
-_
Baldwin. Mag. Obsy.
38 47
95 10
1905-
8 26
•9S
68 41.8
.2186
Olathe
38 49
95 01
1901.6
9 02
9E
68 37. 2
. 2200
Salina
38 49
97 36
1904.6
II 06
6E
68 II. 7
.2234
Do.
38 49
97 35
1904.8
II 09
I E
68 12.0
. 2229
Allen
38 50
98 52
1892. 6
10 20
7E
_ >
Curiew
38 50
lOI 46
1892.5
12 37
^S
_.
— - - 1
Southeast Base
38 51
98 47
1893- 7
10 33
5E
Northwest Base
38 54
98 50
1892.8
10 35
75
_ _ *
Russell
38 54
98 54
1904.8
10 05
2E
68 06.8
.2225
Trego
38 54
99 38
1893.6
II 19
I E
_
Hays
38 55
99 16
1904. 8
II 33
4E
67 59. I
.2243 1
Wallace
38 55
loi 36
1904.8
12 25
2 E
67 41.4
.2252
Abilene
38 56
97 13
1904.7
10 14
5E
68 28.5
. 2220
Ellis
38 56
99 34
190/t. 8
II 18
oE
68 02.4
. 2230
Big Creek
3856
99 54
1893.4
10 59
6E
_
1
Lawrence
38 58
95 15
1877.9
9 51
6E
68 43. 4
. 2244 1
Gove
3858
100 30
1904.8
II 26
^5
68 07. 7
.2251
Bluehill
38 59
99 06
1892. 8
II 10
oE
Alma
39 01
96 17
1902.6
9 17
2E
68 35.3
. 2202
Topeka
39 02
95 43
1902.6
9 07
I E
68 50. I
. 2180
Lincoln Center
39 02
98 09
1904.7
10 07
4E
68 09.9
.2231
Wakeeney
39 02
99 54
1904.8
II 32
8E
67 59. 7
.2239
McT,ane
39 02
loi 57
1892. 6
12 03
I E
Junction
Minneapolis
39 04
9648
1904.7
9 54
I E
68 38."7
. 2202
39 09
97 43
1902.8
10 18
8E
68 14.4
•2233
Minneapolis (B)
39 09
Q7 43
1902.8
10 12
6E
67 48.0
. 2216
Waldo
39 10
98 50
1892.5
II 17
6E
_
Oskaloosa
39 12
95 19
1902. 6
8 30
8E
68 46.0
. 2190
Manhattan
39 12
96 35
1872.8
10 51
3E
6847.2
. 2201
Hoxie
39 22
100 27
1902. 8
II 43
8E
68 09.4
.2232
Goodland
39 22
loi 41
1902.7
12 II
oE
67 57. 2
.2245
Westmoreland
39 24
96 25
1904.8
9 24
oE
69 06.4
. 2169
Hill City
39 24
99 51
1902.8
II 17
oE
68 24.6
. 2214
Clay Center
39 25
97 08
1904.7
9 40
oE
68 59. I
.2186
Colby
Stockton
39 25
loi 03
1902.7
12 02
3E
68 16.2
. 2221
39 27
99 16
1902. 8
II 34
4E
68 37. 8
.2196
Holton
39 28
95 44
1900.6
9 22
2 £
69 02. 6
. 2161
Osborne
39 28
98 42
1902. 8
II 05
4E
68 51.9
•2174
Beloit
39 29
98 06
1902. 8
10 II
I E
68 32.0
. 2224
Concordia
39 35
97 41
1904.7
9 40
7E
69 01. 2
•2173 1
Atchison
39 36
95 06
1902.7
8 27
8E
69 II. 2
•2159 ,
Troy
Phillipsburg
39 46
95 06
1902.7
8 46
9E
69 28.8
•2150
39 47
99 19
1902.7
II 36
3g
68 58.0
. 2165
Bird City
39 47
loi 33
1902.9
12 21
5E
68 25. 8
. 2209 i
Mankato
39 48
98 09
1902.7
10 40
oE
69 22. 2
.2141
Smith Center
39 48
98 47
1902.7
12 01
9E
68 55-5
.2166
Seneca
39 50
96 05
1904.8
9 05
^S
69 50. 5
. 2096
Marysville
39 50
96 39
1900. 6
9 03
8E
69 07.8
• 2165
BellevUle
39 50
97 38
1902 7
10 04
oE
69 18.9
.2140 j
Hiawatha
39 51
95 32
1900. 6
9 31
8E
69 33-5
. 2104
Washington
39 51
97 04
1904.8
10 57
6E
69 21.6
.2138
Norton
.39 51
99 54
1902.7
II 33
6E
69 00.3
. 2169 1
Oberiin
39 52
100 32
1902.8
II 50
8E
68 24.5
.2216 1
Reduced to 1905.0
Decl'n
9 59E
II
16 E
II
17 E
12
05 E
12
23 E
12
15 E
8
39 E
II
06 E
8 26E
10
05 E
II
02 E
9
20 E
II
10 E
II
33 E
10
08 E
II
15 E
8
27 E
9
iiE
II
08 E
II
10 E
10
27 E
12
43 E
10
37 E
10
40 E
10
06E
II
22 E
II
34 E
12
26 E
10
15 E
II
18 E
II
03 E
8
51 E
II
27 E
II
iiE
9
24 E
9
14 E
10
08 E
II
33 E
12
09E
9 55E
10
24 E
10
18 E
II
23 E
8
37 E
9
32 E
II
49 E
12
17 E
9
25 E
II
22 E
9 41 E
12
08E
II
40 E
9
30 E
II
iiE
10
16 E
9 41E
8
33 E
8
52 E
II
42 E
12
26 E
10
46 E
12
08 E
9
06E
9
13 E
10
10 E
9
38 E
10
58 E
II
40 E
II
56 E
Incl'n H. Int.
67 57
67 41
67 34
67 16
67 27
67 08
68 35
68 32
68 58
c.g.s.
.2254
. 2267
.2277
.2299
-2274
.2297
. 2192
2207
.2171
68 17 . 2230
68 05 '. 2240
68 42
68 42
68 12
68 12
68 07
67 59
67 42
68 29
68 03 . 2230
68 50
68 08
68 39
68 54
68 lo
68 00
68 39
68 18
67 51
68 49
68 52
68 12
68 00
69 07
68 27
69 00
68 19
68 41
69 08
68 55
68 35
69 02
69 14
69 32
69 01
68 28
69 25
,68 59
69 51
69 14
69 22
69 39
69 22
69 03
68 27
.2186
. 2192
.2233
. 2228
2225
2242
2252
2219
Source
. 2212
.2251
. 2196
.2174
.2230
.2239
. 2201
. 2227
. 2210
.2185
.2165
. 2228
. 2241
.2168
. 2210
.2185
. 2216
. 2191
•2151
.2170
. 2220
. 2172
■2155
. 2146
. 2161
. 2205
■ 2136
. 2161
. 2096
.2156
. 2136
•2095
.2138
• 2165.
. 2212
CS.4
CS.5
CS.5
CS.5
CS.5
CS.5
CS.3
CS.d
CS.3
CS.d2
CS.d
CS.4
CS.d
CS.d
CS.5
CS.d
CS.5
CS.d2
CS.5
CS5
CS.d
CS.d
CS.d
CS.d
CS.5
CS.d
CS.5
CS.5
CS.5
CS.5
CS.d
CSdi
CS.5
CS.d
CS.3
CS3
CS.5
CS.5
CS.d
CS.5
CS.3
CS.3
CS.d
CS.3
NA.di
CS.3
CS.3
CS.5
CS.3
CS.5
CS3
CS.3
CS.d2
CS.3
CS.3
CS.5
CS.3
CS.3
CS.3
CS.3
CS.3
CS.3
!. CS.5
CS.d2
'I CS.3
h CS.d2
il CS.5
I CS.3
l| CS.3
32 MAGNETIC TABLES AND CHARTS FOR 1905.
Table I. — Observed magnetic elements and the values redticed to January i, jpo^ — Continued.
KENTUCKY
Station
Lati-
tude
N.
Longi-
tude
W.ofGr.
Date
Observed
Reduced to 1905
.0
Decl'n
Incl'n
H. Int.
Decl'n
Ind'n
H. Int.
Hickman
/
36 34
/
89 12.
1881.7
f
5 47- 3 H
/
67 19.4
C.g.s
.2338
f
4 49E
/
67 17
C.g.s
.2307
CS.di
Guthrie
36 38
87 10
1875
5
6 43- 8 E
_
5 15E
NA.d
Williamsburg
36 45
84 09
1903
5
I 05. 9 E
68 10.
.2227
I 04E
68 12
. 2222
CS.4
Scottsville
36 45
86 13
1905
9
5 14. I E
68 01.9
. 2287
5 15E
68 01
. 2289
CS.6
Mayfield
36 45
88 41
188 1
7
5 12.9 E
67 35.0
• 2309
4 15E
67 33
. 2278
CS.di
Pineville
36 47
83 41
1903
5
I I5-9E
67 56.3
.2252
I 14 E
67 58
.2247
CS.4
Russell ville
36 50
86 53
1901
5
3 20. 7 E
67 32.5
.2312
3 16E
67 37
.2302
CS.d2
Barboursville
36 51
83 53
1903
5
09. 3 W
68 16.4
.2234
II W
68 18
.2230
CS.4
Monticello
36 51
84 51
1903
8
4 07. 2 E
67 42. 3
.2263
4 06E
67 44
.2259
CS.4
Harian
36 52
83 20
1903
5
I 01. I W
68 37. 9
.2174
I 03 W
68 39
. 2169
CS.4
Hopkinsville
36 52
87 29
1904
9
4 08. 3 E
67 30.9
. 2267
i 4 08E
67 31
. 2267
CS.5
Twenty-seven Mile I.
36 57
88 14
1865
I
7 22 E
1 5 16E
CS.d
Oakland
37 02
86 15
1871
9
6 14. 2 E
68 48. 8
•2244
1 4 35E
68 27
. 2216
CS.di
Crofton
37 02
87 29
1875
5
6 15. 7 E
1 4 45E
__
NA.d
Patterson Landing
37 03
88 25
1865
2
644 E
_
4 38E
_ _ _ _
CS.d
Upper Ft. of Rocks
Paducah
37 04
88 17
1865
I
7 25 E
_
5 19E
_ _ - _
CS.d
37 04
88 37
1901
5
4 27. 1 E
67 49.9
.2265
4 25E
67 56
•2255
CS.d2
Somerset
37 06
84 37
1903
8
I 16. E
68 20.0
.2250
I 14 E
68 21
.2247
CS.4
Whitesburg
37 07
82 50
1903
5
46. 1 W
68 25. 3
.2189
48 W
68 26
.2188
CS.4
London
37 07
84 04
1903
6
46. E
68 53- 7
.2155
44E
68 55
.2151
CS.^
CS.d2
Princeton
37 07
87 53
1901
5
3 48. 1 E
67 45-6
. 2261
3 44E
67 51
.2251
Hyden
37 10
83 23
1903
6
41.0 E
69 09.5
. 2128
39E
69 II
.2124
CS.4
Manchester
37 10
83 46
1903
6
23. 2 W
69 06. 2
. 2136
25 W
69 08
.2132
CS.4
Cave City
Greenville
37 10
85 55
1875
5
'5 54- 5 E
_
4 18E
_ _ _ _
NA.d
37 13
87 II
1901
5
3 48. 5 E
68 19.6
.2217
3 44E
68 24
. 2209
CS.d2
Hazard
37 15
83 II
1903
6
18.5 W
68 44.9
• 2155
21 W
68 46
.2151
CS.4
Greensburg
37 17
85 30
1904
8
2 22.2 E
69 00. 8
■ 2155
2 22 E
69 01
.2156
CS.5
Hind man
37 19
82 58
1903
6
02. 6 W
68 49.0
• 2154
05 W
68 50
• 2150
CS.4
Madisonville
37 19
87 33
1881
8
5 06.2 E
68 24. 2
.2266
4 ooE
68 17
•2237
CS.di
Livingston
37 20
84 14
1900
5
31.4 E
68 37.0
■ 2195
24E
68 42
.2185
CS.d2
McKee
37 26
83 59
1903
6
31.2 E
69 08.9
. 2II8
29 E
69 10
2115
CS.4
Boonville
37 28
83 40
1903
6
14. 3 W
68 57- 3
.2124
16 W
68 58
. 2121
CS.4
Leitchfidd
37 28
86 17
1904
9
2 19. 2 E
68 33.2
. 22II
2 19E
68 33
. 2211
CS.5
PikeviUe
37 29
82 31
1903
7
46. I W
68 39. 8
•2194
49 W
68 41
. 2191
CS.4
Stanford
37 31
8444
1881
8
4 15. 8 E
69 43- 8
.2132
3 03E
69 34
. 2100
CS.di
1 ackson
37 33
83 23
1903
6
I 15- 5 E
68 58. I
.2131
I 13 E
68 59
. 2128
CS.4
Jeattyville
37 35
83 42
1903
6
06. I W
69 02. 8
.2129
08 W
69 04
. 2126
CS.4
BeattyviUe (A)
37 35
83 42
1903
6
04. 2 W
_
06W
CS.4
Lebanon
37 36
85 19
1881
8
3 43- 9 E
69 06.8
. 2190
2 32E
68 57
.2158
CS.di
Lancaster
37 37
84 32
1903
8
2 53-3 E
69 05. 9
.2158
2 50E
69 07
•2155
CS.4
Prestonburg
37 41
82 45
1903
7
06. I W
68 52. I
. 2160
08 W
68 53
•2157
CS.4
Irvine
37 42
83 58
1903
6
14. 6 E
69 II. 9
. 2104
i3»E
69 13
. 2101
CS.4
Elizabeth town
37 42
85 52
1904
9
I 46. I E
68 27.4
. 219I
I 46 E
68 28
. 2191
CS.5
Morganfield
37 42
87 54
1 901
5
4 45. 9 E
68 38.5
. 2196
4 42E
6843
. 2187
CS.d2
Campton
37 44
83 32
1903
6
I 23. 3 E
68 46. 7
. 2160
I 21 E
68 48
•2157
CS.4
Salyersville
37 45
83 05
1903
7
14. 6 E
69 02.8
.2142
12 E
69 04
• 2139
CS.4
Richmond
37 45
84 18
1900
5
05.3 E
69 29. I
. 2102
01 W
69 34
. 2092
CS.d2
Harrodsburg
37 46
84 50
1903
8
I 3I-5E
69 II. I
•2135
I 29 E
69 12
.2132
CS.4
Owensboro
37 46
87 05
1901
5
3 27. I E
68 32. 9
. 2210
3 23E
68 37
. 2202
CS.d2
Paintsville
37 49
82 49
1903
7
08. 3 w
69 03.5
.2147
II W
69 04
■2144
CS.4
Stanton
37 51
83 50
1903
6
I 00.0 E
69 04.3
. 2140
58E
69 05
•2137
CS.4
Inez
37 52
82 34
1903
7
36. 1 W
69 II. 6
. 2146
38 W
69 12
•2144
CS.4
Hawesville
37 54
86 45
1900
9
3 35. » E
69 02.0
.2159
3 31 E
69 07
.2149
CS.d2
West Liberty
37 55
83 16
1903
7
39- 9 E
69 10. I
■2133
38 E
69 II
. 2130
CS.4
Nicholasville
37 56
84 38
1875
5
2 48. 3 E
_ _ _ __-
I 12 E
-__-
NA.d
Frenchburg
37 57
83 36
1903
6
16. 7 W
69 12.7
. 2136
19 W
69 14
.2133
CS.4
Lawrenceburg
38 02
84 53
1903
8
I 53. 7 E
69 39-5
. 2089
I 52 E
69 41
.2087
CS.4
Sandy Hook
38 04
83 08
1903
7
48. 3 E
69 21. 2
.2132
46E
69 22
. 2129
CS.4
Mount Sterling
38 04
83 59
1900
5
I 24. 5 E
69 47.9
.2118
I 16 E
69 53
.2108
CS.d2
Lexington
Versailles
38 04
84 30
1896
3
50. 6 E
69 32.6
•2079
32 E
69 42
. 2062
CS.di
38 04
84 43
1903
7
I 00. 3 E
69 46. I
.2088
58E
69 47
.2085
CS.4
Louisa
38.07
82 35
1903
7
33- 9 W
69 31- I
.2111
36 W
69 32
.2108
CS.4
Morehead
38 10
83 27
1900
5
41.5 W
69 29.8
.2123
50W
69 35
.2113
CS.d2
ShelbyvUle
38 13
85 13
1871
9
3 02. 7 E
69 46.6
.2144 ,
I 09E
69 24
. 2109
CS.di
Georgetown
38 13
84 33
1903
7
39- 5 E
69 310
. 2090 1
38E
69 32
. 2087
Si-^
Louisville
38 14
85 42
1904
8
I 20. 1 E
69 33- I
.2113
I 20 E
69 33
.2113
CS.5
Portland
38 16
85 50
1875
5
3 37-9 E
2 01 E
NA.d
Grayson
38 19
82 58
1900
5
22.9 E
69 41.6
.2123
14E
69 47
. 2112
CS.d2
Flemingsburg
38 26
83 46
1881
8 1
I 45. 3. E
69 45-2
•2133
31 E
69 35
.2100
1 CS.di
MAGNETIC ELEMENTS IN THE UNITED STATES. 33
Table I.— Observed magnetic elements and ike values redticed to January i, 190^ — Continued.
KENTUCKY—Continued
Lati-
tude
N.
/
38 26
38 33
38 38
38 40
38' 41
38 41
Longi-
W.ofGr.
Date '
01
Decl'n
)scrved
H. Int.
1 Reduced to 1905.0
Source
Station
Incl'n
Decl'n 1 Incl'n H. Int.
1
C3nithiana
Owenton
Williamstown
Falmouth
Maysville
Brooksville
/
84 17
84 51
8436
84 22
83 41
84 07
1881.8 1
1903.7 1
1903.7 ,
J903. 7 '
1875.5
1903.7 '
/
2 28.4 E
1 34. 1 E
I 32.5 E
I 20. 9 E
00. 4 E
54. 7 E
/
69 44.0
69. 48. 2
69 35.7
69 43.9
70 00.0
C.g.s.
•2133
.2078
.2096
.2099
. 2069
/ /
1 I 12 E 1 69 34
I 32 E 1 69 49
I 30 E 1 69 37
I 19 E 69 45
! I 42 W'
53 E 70 01
c.g.s.
.2100
• 2075
.2093
. 2096
.2066
CS.di
CS.4
CS.4
CS.4
NA.d
1 CS.4
LOUISIANA t
Southwest Pass
28 59
Do.
28 59
Isle Demi^re
29 02
Southeast Pass
29 05
Cubit
29 ID
Pass k Loutre
29 II
Osgood Island
29 II
Fort Livingston
29 16
Magnolia Base, 1. e.
Belle Isle
29 32
29 32
Marsh Island L. H.
29 35
Pointe a la Hache
29 36
Houma
29 36
Morgan City
29 40
Brashear City
29 41
Berwick Bay
29 42
Shell Point
29 43
Cote Blanche
29 44
Shark Bayou
29 47
Cameron
29 47
Thibodaux
29 48
Franklin
29 48
Do.
29 48
Weeks Island
29 48
Baldwin
29 49
Grande C6te
29 50
Do.
29 50
St. Bernard
29 53
Barrel Key
29 54
New Orleans nr. Un.
29 54
New Orleans. F. G.
29 59
29 55
Do.
29 55
Gretna
29 56
Napoleonville
29 56
Hahnville
29 58
AbbevUle
29 58
New Iberia
30 00
L.Pontchartrain,E. B.
30 01
Convent
30 01
Edgard
30 02
Chanddeur L. H.
30 03
Frenier
30 06
Donaldsonville
30 07
St. MartinviUe
30 08
Kirsch
30 10
Crowley
30 12
Mermentau
30 12
Jennings
30 12
Lafayette
30 13
1904.0
/
/
1
c. g. s. .
/
/
c. g. s.
58 42.2
1
_ _ _
58 47
CS.i
6 05.4 E
58 46. 5
. 2863 1
4 50E
59 08
.2798
CS.di
8 19. 2 E
!
. 2940 1
5 43 E
-_ ..
, CS.d
_
58 45-3
59 10
.2864
' CS.i
7 31-8 E
58 54.0
.2924
5 15E
59 19
.2848
CS.di
7 30. E
58 47-0
.2930
5 13E
59 12
.2854
CS.di
6 10. 7 E
59 01.2
.2798
4 56E
59 24
.2733
' NA.di
7 38. 4 E
_ .
4 57E
_ - __
, CS.d
6 46. 8 E
59 23.5
. 2756 1
5 32E
59 46
. 2691
CS.di
6 08.6 E
59. 29. 9
.2781 !
6 08E
59 29
.2782
1 CS.5
6 53. 7 E
58 51.7
. 2860 ;
6 30E
59 16
.2809
1 CS.di
5 22.9 E
59 47.6
.2774
5 24E
59 51
.2769 1
CS.4
5 42.6 E
59 33. 8
. 2789 1
5 47E
59 40
.2781 1
CS.3
6 30. 1 E
59 13.3
. 2840 1
6 08E
59 39
• 2789
: CS.di
6 53. I E
59 16.3
.2809 1
5 46 E
59 39
.2744
NA.di
6 02. 2 E
59 38. 7
. 2784 '
6 02 E
59 38
.2785
Si-5
6 19.4 E
1
6 igE
__ .-
i CS.5
6 17.8 E
__
'
6 20E
_-
1 CS.4
6 17. 8 E
1
6 18E
__
: CS.5
6 54- E 1
_
7 01 E
__ __
CS.d
5 44.0 E
59 43.4
.2779
5 49E
59 49
•2770
1 CS.3
6 05. 8 E
59 42. I
.2787
6 08E
59 45
.2782
CS.4
6 06.5 E
6 06E
! CS.5
6 16. 5 E
_.
6 16E
_ _ _-
CS.5
6 07. 7 E
59 40. 2
. 2800 1
6 loE
59 43
.2796
CS.4
6 13.2 E
59 36.8
.2800
6 15E
59 40
.2796
CS.4
6 16.6 E
I
6 16E
..
1 CS.5
5 28. 9 E
60 01.8
.2769
5 30E
60 04
.2765
CS.4
7 36. 1 E
59 48. 2
• 2897
5 08E
60 II
.2808
I CS.di
5 24. 4 E
. 2794 1
5 29E
__ _.
.2778
1 CS.d2
1 CS.di
5 40. 4 E
59. 43. 2
. 2794 ,
5 39E
60 05
.2759
7 19.7 E
59 26.4
.2772 ;
6 13E
59 49
•2707
1 NA.di
6 21. 6E
.... 1
6 24E
CS.4
5 40. 1 E
60 02.0
.2765
5 42E
60 05
. 2761
CS.4
5 47.4 E
59 51.4
.2776
5 52E
59 57
.2767
Si-3
5 35-6 E
59 58. 5
•2773
5 39 E
60 04
•2765
' CS.3
6 28. I E
59 41.6
.2784
6 30E
59 44
.2780
CS.4
6 18. 4 E
59 49- 3
• 2793
6 20E
59 52
•2789
CS.4
5 33 E
.
5 35E
__
__- -
CS.d
5 45- 6 E
59 57.5
.2771 1
5 50 E
60 03
. 2762
S^-3
5 39- 5 E
60 05. 2
|. 2767
5 42E
60 II
.2759
CS.3^
458 E
458E
.. _.
CS.dt
5 36 E
_ - __
5 38 E
._ ..
CS.d
5 46. 5 E
60 04.8
!• 2763
5 51 E
60 10
.2755
CS.3
6 22.2 E
60 00. I
• 2785
6 24E
60 03
.2781
CS.4
5 29 E
5 32E
_ _ __
__- -
CS.d
6 31. 8E
60 04.6
'.2773 i
6 34E
60 07
.2769
1 CS.4
6 49. 4 E
59 34-5
. 2801
6 36E
60 01
.2755
1 CS.di
6 38. oE
60 03.5
.2772
6 40E
60 06
.2768
CS.4
6 31. 8E
60 II. 3
:. 2760
6 33E
60 12
.2759
' CS.5
t The magnetic work in Louisiana, 1901-1905, was executed under the joint auspices of the U. S. Coast and
Geodetic Survey and of the Louisiana Geological Survey (G. D. Harris, State geologist). Besides references given,
c/Bull. No. 2 of the Louisiana Geological Survey, Baton Rouge, 1905.
% Observation by U. S. Engineer.
53819—08 3
34 MAGNETIC TABLES AND CHARTS FOR 1905.
Table I. — Observed magnetic elements and the values reduced to January i, igo^ — Continued.
LOUISIANA— Continued
Appledore Island
Kittery Point
Cape Neddick
Agamenticus
Kennebunkport
Fletcher Neck
Richmond Island
Portland
Bailey Island
Harpswell Neck
Observed
1
Station!
Lati-
Lonffi-
tude
W.ofGr.
tude
N.
Date
Ded'n
Incl'n
H. Int.
't
Northwest Point
/
30 14
/
90 21
1896.3
/
5 31 H
/
c. g. s. 1
Lake Charles
30 14
93 13
1904.0
6 50. 5 E
60 02.4
•2770
Anse la Butte
30 15
91 56
1904. I
6 26. 6 E
Evangeline
30 16
92 33
1904.2
6 39. 2 E
59 57.9
.278;
Plaquemine
30 18
91 15
1904.2
5 5I-2E
60 30.4
•2737
Springville
30 26
90 41
1904.2
5 41.9 E
60 42.0
•2723
Baton Rouge
30 28
91 12
1903. I
5 51. 5E
60 29.5
■2730
Covington
30 29
90 07
1903.0
5 27.6 E
60 41.4
. 2720
Opelousas
30 33
92 04
1904. I
6 22.8 E
60 20. 6
•2758 i
New Roads
30 42
91 28
1903. I
6 00.0 E
60 47. 1
. 2720
Amite
30 44
90 29
1903.0
5 43- 4 E
60 49.9
.2717
St. Francisville
30 46
91 20
1903. I
6 00. 2 E
60 50.8
■2713
Chicot Marble Q.
30 47
92 28
1904.2 1
6 44.9 E
60 46.7
. 2703
Oakdale
30 48
92 38
1904.2
6 43. E
60 41.4
•2717 !
Greensburg
30 50
90 42
1903.0 1
5 47. 8 E
60 55.4
.2712 1
Franklinton
30 52
90 09
1904.2
5 33- 9 E
6i 04.8
.2697 I
Clinton
30 53
91 00
1903. I
5 50. 7 E
60 53-5
.2712
Chenejrville
30 59
92 18
1904- I 1
6 38. 2 E
60 58.8
• 2713
Marksville
31 07
92 03
1904.2
6 32.7 E
61 03.2
.2719 1
Leesville
31 "
93 15
1904.0
7 02. 2 E
60 59.8
• 2707
Alexandria
31 20
92 25
1904.1
6 38. 6 E
61 13.6
.2698
Gaines Ferry
31 28
93 45
1840.4 1
8 40.5 E
60 57
Colfax
31 32
92 42
1904. I
6 42. 8 E
61 28.6
.2682 :
Many
31 34
93 29
1904.0
7 04. 6 E
61 30.7
.2686
Vidalia
31 35
91 26
1904.2
6 03. 6 E
61 38.2
.2672
Natchitoches
31 44
93 05
1834- 3
_ - _ _
62 II
____
Do..
31 44
93 07
1840.5
61 15.9
1
Do.
31 46
93 04
1904. 1
6 44.4 E
61 39-5
.2675
Harrisonburg
31 47
91 49
1904.2
6 17.3E
61 56. 2
•2655
Grand Ecore
31 48
93 07
1872.3
7 52.4 E
61 27. 2
.2721
St. Joseph
Winnfied
31 56
91 14
1904.2
6 03. 6 E
62 08.3
.2644 1
31 57
92 36
1904.1
6 48. 6 E
61 53-9
•2655
Cpushatta
32 01
93 22
1904.2
6 57.3 E
61 51.9
.2660:
Sabine River
32 01
94 00
1840.5
61 36.8
Mansfield
32 03
93 41
1904.0
7 00. 6 E
61 53.4
.2658
Columbia
32 06
92 03
1901.3
6 19. 7 E
62 08. 2
•2653
Winnsboro
32 09
91 42
1904.2
6 12.9 E
62 15.8
•2635
Tallulah
32 25
91 12
1904. I '
6 00. 7 E
62 33-4
. 2619
Rayville
32 28
91 45
1904.2
6 18. 7 E
62 36.3
. 2617
Monroe
32 30
92 06
1904. I
6 26. 6 E
62 33- 7
. 2621
Shreveport
32 31
93 46
1904.1
6 59- I E
62 23.7
. 2636 ,
Ruston
32 33
92 37
1904. I
6 450 E
62 33.2
. 2616 ,
Arcadia
32 33
92 56
1904.1
6 49. 8 E
62 33- 2
. 2620 1
Minden
32 38
93 17
1904. 1
7 01. 1 E
62 32.0
.2625 j
Benton
32 40
93 44
1904. 2
7 04. 6 E
62 41.6
.2612 1
Floyd
32 42
91 24
1904. 2
6 14. 5 E
62 59.0
■ 2590
Farmerville
32 46
92 23
1904. I
6 39. 9 E
62 50.3
.2605
Bastrop
32 47
91 54
1904.2
6 19. 7 E
62 53.5
.2605
T,ake Providence
32 48
91 10
1904. 2
6 04. 4 E
62 58. I
• 2595
Homer
32 48
93 03
1904. 1
6 53- 7 E
62 46.7
I. 2606 1
Reduced to 1905.0
MAINE
42 59
43 05
43 12
43 13
43 20
43 27
43 33
43 39
43 43
43 44
70 37
70 43
70 36
70 42
70 28
70 20
70 14
70 17
70 00
70 02 I
1847. 6 I
1898.9
1851.7 !
1847-7 j
1903.8 1
1850.7 1
1850.7 1
1906. 8
1905- 7 I
1905.7
10 03. 5 W
13 12.3 W
11 09. o W
10 09. 8 W
14 12.4 W
11 17.5 W
12 18. I W
14 57- oW
15 05.5 W
16 33. 9 W
74 44- I
73 43- 8
74 57.9
74 54. 7
73 57.7
75 18.3
75 08.0
74 02. 8
74 10.7
73 55-8
c. g. s.
. 1605
.1687
. 1621
. 1593
.1663
.1586
•1597
. 1660
.1638
. 1671
Decl'n Incl'n H. Int.
Source
5 33E I
6 53E I
6 29 E
6 41 E i
5 53E
5 43E
5 56 E
5 32E
6 25E
6 04E
5 47E
6 04E
6 47E
6 45E
5 52E
5 35E
5 55E
6 40E
6 34E
7 05E
6 40E
5 40E
6 45E
7 07E
6 06E
I
** ' c.g.s.\
60 05 . 2766 \
47 E
19 E
45 E
05 E
59 E
7 03 E
6 26E
6 15E
6 03 E
6 21 E
6 29 E
7 01 E
6 47E
6 52E
7 03 E
7 06 E
6 16E
6 42 E
6 21 E
6 06E
6 56E
60 00 '
60 33
60 44
60 35 I
60 47
60 23
60 52
60 56 I
60 57 '
60 49
60 44
61 02
61 07
61 00
61 01
61 05
61 02
61 16
60 50
61 31
61 33
61 40
62 07
61 20
61 42
61 59
61 50
62 II
61 56
61 54
61 42
61 56
62 19
62 18
62 36
62 39
62 36
62 26
62 36
62 36
62 34
62 44
63 02
62 53
62 56
63 00
62 49
2780
2733 I
2720 I
2722
2711
2754 I
2712 !
2709 ;
2705
2699 {
2713 V
2703 il
2694 I,
2704
2709
2715
2703
2694
2678
2681
2669
2671
2652
2664
2640
2651
2656
2652
2638
2631
2615
2613
2618
2633
2613
2617
2621
2609
2587
2601
2602
2591
2602
CS.d
CS.4
CS.4
CS.4
CS.4
CS.4
CS.3
CS.3
CS.4
CS.3
CS.3
CS.3
CS.4
CS.4
CS.3
CS.4
CS.3
CS.4
CS.4
CS.4
CS.4
CS.dit
CS.4
CS.4
CS.4
CS.it
CS.it
CS.4
CS.4
CS.di
CS.4
CS.4
CS.4
CS.it
CS.4
CS.d2
CS.4
CS.4
CS.4
CS.4
CS.4
CS.4
CS.4
CS.4
CS.4
CS.4
CS.4
CS.4
CS.4
CS.4
13 22 w
13 33 W
14 11 W
13 28 W
14 16 W
14 19 W
15 20 w
14 52 w
15 03 w
16 32 w
1
/ .
c. g. s.
73 19
. 1695
73 37
. 1696 1
73 35
. 1720 1
73 33
. 1684 1
73 57
.1663
73 54
.1684
73 44
.1695
74 05
■1657
74 "
•1637
73 56
. 1670
CS.d I
CS.d2
CS.d I
CS.di
CS.4
CS.di
CS.di
CS.7
CS.6
CS.6
t Observations by J. D. Graham, Sill. J., Vol. IV, 1847.
t Observations by J. N. Nicollet, C. & G. S. Rep. 1864, App. 19.
MAGNETIC ELEMENTS IN THE UNITED STATES. 35
Table 1.— Observed magnetic elements and the values reduced to January i, igo^ — Continued.
MAINE — Continued
station
Lati-
tude
N.
Mount Independence
Cape Small
Freeport
Brunswick
Bath
Damariscotta
Mount Pleasant
Kimball Island
Rockland
Do.
Do.
Do.
Mount Sabattus
Camden village
Mount Ragged
Southwest Harbor
Mount Desert
Bar Island
Do.
Jordans Island
Belfast
Beans Island
Mill Bridge
Howard
Mount Saunders
Epping Base, E end
Mount Harris .
Fannington
Machiasport
Pittsfield
Bangor
Humpback
East port
Eastport I
Eastport II
Rangeley
Cooper
Calais
Do.
Greenville
Mattawamkeag
Vanceboro
Danforth
Houlton
Piresque Isle
43 46
43 47
43 51
43 54
43 55
44 02
44 02
44 05
44 06
44 07
44 07
44 07
44 09
44 12
44 13
44 15
44 21
44 24
44 24
44 25
44 26
44 28
44 32
44 38
44 39
44 40
44 40
44 40
44 41
44 46
44 48
44 52
44 55
44 55
44 55
44 58
44 59
45 "
45 II
45 28
45 31
45 34
45 40
46 07
46 39
Longi-
tude
W.ofGr.
70 19
69 51
70 06
69 58
69 49
69 32
70 49
68 38
69 06
69 05
69 05
69 05
70 05
69 05
69 09
68 18
68 14
68 12
68 13
68 08
69 01
68 13
67 54
67 24
68 36
67 50
69 09
70 II
67 24
69 22
68 48
68 07
6659
66 59
67 00
70 38
67 28
67 17
67 17
69 36
68 24
67 27
67 58
67 53
68 00
Date
[849.8
[851.8
1863.5
873. 7
863.5
887.6
851.6
1905-6
[863. 5
[906.7
[905- 6
1905.8
[853.6
854. 8
854. 7
1905.8
[856. 8
[904.8
1904.8
904.8
1863.5
905. 7
[887.6
859.6
856.5
1857.5
855. 7
905.8
[887. 6
[887. 7
[905.8
[858.6
[895.6
[906.7
[906.7
1905. 8
859. 7
:895.6
[906.7
887.7
887.7
887. 7
887. 7
887. 7
[887
Observed
1
1
Dccl'n
Ind'n
H. Int. 1
I
/
/
c. g. s.
1 II 46.4 w
75 23.8
•1578
12 05.5 W
75 01.8
•1563
14 II. 7 W
75 20.3
• 1563
14 18. oW
75 08..3
.1585
12 5I.8W
75 25.5
•1545
15 12. 8 W
74 34- 5
. 1600
14 32. I w
76 01.5
. 1481
15 49- 7 W
74 20. 7
. 1622
15 02. I W
75 30.9
• 1528
16 37. 2 w
74 21.0
. 1622
16 29. 8 W
74 18.7
. 1626
16 31.2 W
74 13.9
.1636
12 53. 5 W
75 40.6
.1573
13 57. 1 w
75 41.5
. 1542 1
14 16. 8 W
75 41.2
.1542
16 20. 6 W
74 47- 2
. 1581
15 14. 2 W
76 09.2
. 1501
16 51.6 W
74 48. 7
. 1573
16 46. 2 W
74 51.6
. 1560
14 49. I W
75 10.3
•1547
15 30. 3 W
75 38. I
• 1533
16 53. 2 W
74 29.9
.1597
17 04. 9 w
74 30. 6
.1627
18 3I.6W
75 21.6
• 1594
14 59. 4 W
75 58. 6
.1512
1 16 20 W
14 34. 6 W
76 14. I
• 1494
15 55. 8 W
74 50. 5
.1586
17 42.9 w
74 27. 2
.1616
.15 59. 3 W
75 15.3
.1541
1 17 27. 7 W
74 49. 6
.1572
' 15 47.8W
76 12.0
.1485
18 53. 2 W
74 37- 6
.1598
19 21.5 W
74 23.9
. 1615
19 39. 2 w
74 20.5
. 1619
16 17.8 w
74 52.4
.1587
1 r6 3i.9W
76 20.3
.1466
1 17 25.3 w
75 11.3
.1547
' 17 58.4 w
74 42. 2
.1578
1 16 48. I W
7-5 36.3
. 1506
1 17 56. 6 W
75 34.4
.1498
h 18 21.6 W
75 36.4
.1485
1 18 22.7 W
75 41.2
.i486
19 00. 3 W
76 01.8
• 1456
20 03. 8 W
76 30. 9
. 1426
Reduced to 1905.0
I
Decl'n Incl'n
14 51 w
14 48 w
16 16 w
15 56 w
14 46 w
16 00 w
17 14 w
15 48 w
16 51 w
16 32 w
16 28 w
16 29 w
15 26 w
16 18 w
16 38 w
16 19 w
17 18 w
16 52 w
16 47 W
14 50 w
17 17 w
16 52 w
17 42 W
20 16 w
17 03 w
18 10 w
16 51 w
15 54 W
18 20 w
16 43 W
17 26 W
17 35 W
19 14 W
19 17 w
19 35 W
16 15 W
18 16 W
17 47 W
17 54 W
17 22 W
18 33 w
18 58 w
18 59 W
19 30 w
20 34 W
00
37
07
14
12
07
34
21
19
22
19
15
14
12
II
48
41
48
51
10
25
31
00
56
26
45
51
00
48
51
43
4 23
4 26
23
H. Int.
C. g. s.
1672
1662
1643
1638
1624
1632
1581
162 1
1605
1619
1625
1635
1670
1638
1638
1579
1591
1574
1560
1547
1610
1596
1658
1678
1602
^586
1585
1647
1572
1570
1572
1614
1613
1617
1586
1550
1564
1576
1537
1529
1516
1517
1485
1455
Source
CS.di
CS.di
CS.di
NA.di
CS.di
CS.di
CS.di
CS.6
CS.di
CS.7
I CS.6
CS.6
CS.di
CS.di
CS.di
CS.6
CS.di
I CS.5
I CS.5
i CS.5
, CS.di
CS.6
CS.di
I CS.di
i CS.di
CS.d
I CS.di
I CS.6
CS.di
! CS.di
CS.6
j CS.di
I CS.di
; CI.
CI.
CS.6
CS.di
CS.di
CI.
CS.di
CS.di
CS.di
CS.di
CS.di
CS.di
MARYLAND
Crisfield
Pocomoke City
Snow Hill, C. H.
Snow Hill, S. M.
Snow Hill, N. M. ,
Princess Anne, H. S.
Princess Anne, S. M.
Princess Anne, N. M.
Mason's Landing
Hooper Island
Leonardtown, C. H.
Leonard town, S. M.
Ocean City
Davis
Berlin
Salisbury, M. L.
Calvert
—
/
/
38 00
75 50
1896.9
38 05
75 34
1896. 7
38 10
75 24
1896.7
38 10
75 24
1900.4
38 10
75 24
1900.4
38 12
75 42
1896.7
38 12
75 42
1900.4
38 12
75 42
1900.4
38 14
75 15
1856.6
38 14
76 08
1902.0
38 17
76 38
1896.7
38 17
7638
1900.5
38 20
75 06
1896.7
38 20
75 06
1853. 7
38 20
75 13
1896. 7
38 22
75 38
1896.9
38 22
76 24
1871.6
4 w
8W
8W
6W
8 W
3W
6 W
8W
8W
W
2 W
6W
5W
oW
3W
7W
9W
/
c. g. s.
b t
/
c. g. s.
69 36. 8
•2074
5 II w
69 38
.2055
MS.1I
69 43-8
.2065
5 38 w
69 45
. 2046
MS.II
69 41.8
. 2069
5 30W
69 43
.2050
MS.II
_
5 38 w
CS.d
_^
5 38 W
__
CS.d
69 52.8
.2057
530W
69 54
.2038
MS.II
_
5 31 W
__ __
CS.d
5 26W
__
CS.d
70 44.8
.2032
5 16W
69 47
.2044
CS.di
_
5 22W
-_ --
CS.d
69 36.9
.2086
509W
69 39
.2065
MS.II
5 08W
CS.d
70 01.8
.2038
5 54W
70 03
. 2020
MS.II
70 57- 7
.1997
5 32 W
70 05
.2008
CS.di
69 58. 4
•2054
5 51 W
70 00
.2036
MS.II
70 03. 5
•2045
5 36 W
70 05
. 2027
MS.II
70 33.9
. 2064
446W
69 54
.2053
CS.di
36 MAGNETIC TABLES AND CHARTS FOR 1905.
Table I. — Observed magnetic elements and the values reduced to January j, igo^ — Continued.
MARYLAND— Continued
station
Parsonsbur^
Mechanicsville
La Plata
Prince Fredericks-
town
Prince Fredericks-
lown, S. M.
Prince Fredericks-
town, N. M.
Cambridge
Huriock
Oxford
Brandywine
Tilghman I.
Cheltenham Obs.
Fairhaven
Easton
Upper Marlboro
Centerville
Marriott
Denton, S. M.
Denton, N. M.
Kent I., S. B.
Hill
Bay Ridge
Ridgely
Stevensville
Annapolis, N. A.
Annapolis, S. M.
Annapolis, N. M.
Taylor
Linden
Forest Glen
Kent I., Sta. I.
Centerville, Acad.
Centerville, C. H.
Seneca
Webb
Soper
Rockville, A.
Rockville, S. M.
Laurel
Hunting Hill
Stabler
Do.
Derwood
Quince Orchard
Bodkin Light
Redland
Gaithersburg
Gaithersburg, Obs.
Gaithersburg, I
Gaithersburg, II
Gaithersburg, III
Dawsonville
Cross Roads, II
Waring
Boyds
Cross Roads, I
Middlebrook
North Point
Do.
Fairfax Stone
Chestertown
Tolchester
Camp Fairfax
Camp Potomac
Unity
Dickerson
38 24
38 27
38 31
38 32
38 32
38 32
38 34
38 38
38 41
38 42
38 43
38 44
38 45
38 46
38 49
38 49
38 52
38 53
38 53
38 54
38 54
38 56
38 57
38 59
38 59
38 59
38 59
39 00
39 00
39 01
39 02
39 03
39 04
39 04
39 05
39 05
39 05
39 05
39 06
39 06
39 07
39 07
39 07
39 07
39 08
39 08
39 08
39 08
39 08
39 08
39 08
39 08
39 10
39 10
39 10
39 II
39 II
39 12
39
39
12
12
39 13
39 13
39 13
39 13
39 14
39 14
75 27
76 45
76 58
76 35
76 35
76 35
76 05
75 53
76 10
76 51
76 20
76 50
76 33
76 04
76 45
76 52
76 37
75 52
75 52
76 22
76 53
76 27
75 53
76 19
76 29
76 29
76 30
76 28
77 03
77 03
76 19
76 04
76 04
77 21
76 40
76 57
77 09
77 09
76 50
77 12
76 59
76 59
77 10
77 15
76 26
77 09
77 II
77 12
77 12
77 12
77 12
77 20
77 09
77 15
77 20
77 12
77 14
76 27
76 27
79 29
76 05
76 14
79 29
79 30
77 04
77 25
Observed
Reduced to 1905.0
Date
896
896
905
896
900
900
897
896.
897
896
897
905
897
897
903
900,
849
900,
900
897
868
897
896
897
896
900
900.
847
905
896.
849
897
897
899
897
850
897
903
897
899
869
896
899
899
847
899
899
901
899
899
899
903
899
899
903
899
899
846
847
897
897
897
897
897
896
900
Decl'n
Incl'n
H. Int.
/
t
■
c. g. s.
5 22.9 w
70 03.0
.2044
4 43-4W
69
47-5
•2044
5 04. 8 W
70
02.3
. 2040
5 10.4 W
69
57.5
.2063
5 24.3 W
--
5 18. 6 W
--
1 5 2A.0W
69
59-5
.2049
1 5 24. 9 W
70
07.6
. 2040
5 33.9 W
70
05.8
. 2048
70
15-2
5 23. 4 w
70
04.4
. 2048
5 15- 7 W
70
25- 3
. 2009
5 23-2 W
70
12.4
■2037
5 34.3 W
70
15.8
.2030
' 5 27.6 w
70
20. I
. 2013
1
70
19. 6
2 05. W
71
12.9
•1997
5 54-8 W
604.3W
__
5 21-4 W
70
31.8
. 2015
1 2 51.1 W
71
17.1
.2015
70
34-2
5 44-3 W
70
27-8
. 2016
_
70
31.6
•1995
, 5 16. I W
70
39-7
. 2004
1 5 30. 8 W
5 34.8W
__
2 18. oW
71
19.3
■ 1946
1 3 56.3 W
70
50- 6
•1958
3 37.0 W
70
28.6
.1996
2 30. 2 W
71
16.6
.1986
; 552.4W
70
32.0
.2013
5 53.9 W
--
. 2024
1 2 31. 4W
70
53.6
5 02. 3 W
70
43-
•1994
2 07. I W
71
56.5
. 1911
5 24.6 W
70
05- 9
6 02.2 W
70
00.8
. 2046
70
44-8
.1984
6 08. 5 W
70
00.6
.1986
1 2 39.9 w
--
•1973
1
70
29.2
' 8 22."5 W
70
17.2
.2039
4 15. I W
71
01.3
.1967
2 01.9 W
71
43.1
• 1932
6 34-6 W
70
23- 4
. 2009
5 17.1 W
70
26.2
.1992
6 30. W
70
45.4
• 1979
i 541.9W
70
45-4
1978
, 5 54.6 W
70
49.2
• 1972
1 5 26. 6 W
70
47.6
■1977
j 4130W
70
36.0
•1983
6 09. 4 W
70
39-4
.2018
48. 8 W
71
46.5
. 1881
4 03.6 W
70
36.2
• 1973
6 03. W
70
42.6
.2013
4 49. 7 W
70
40.6
.1983
-
71
29- 5
. 1929
I 39. 6 W
__
3 07. 2 W
70
28."8
. 2022
5 47.0 W
70
41.0
.2003
5 37- I W
70
514
. 1971
3 05.8 W
70
34.4
. 2026
70
31.6
5 36.0 W
70
27.6
. 2006
2 33- W
70
48.9
.1966
Decl'n
Incl'n
H. Int.
/
/
c. g. s.
549W
70 04
. 2027
5 II w
69 50
. 2023
5 03 w
70 02
. 2041
5 36 W
69 59
. 2042
5 40 W
- --
5 34 W
.. ..
5 48 W
70 01
. 2028
5 51 W
70 10
. 2019
557W
70 08
. 2028
- _-
70 17
5 48 VV
70 06
.2028
5 16 W
70 25
. 2009
5 48 w
70 14
. 2017
5 57 W
70 18
. 2010
5 33 W
70 21
. 2006
_ -_
70 22
Source
5 30 W
6 09 W
6 19W
5 45 W
5 03 W
6 10 W
5 4iw
5 45 W
5 49 W
5 52 W
3 55W
4 02 W
5 50 W
6 16W
6 18W
2 49 W
5 26 W
5 30W
5 48 W
6 08 W
6 26 W
4 48 W
8 40 W
4 32W
5 31 W
6 52 W
5 35 W
6 42 W
5 59 W
6 12 W
5 44 W
4 19W
6 27 W
1 06 W
4 09 W
6 20 W
5 07 W
5 09 W
3 30 W
6 II W
6 01 W
3 28 W
6 02 W
2 48 W
70 23
70 34
70 34
70 36
70 30
70 34
70 42
70 31
70 50
70 31
70 27
70 34
70 56
70 45
71 06
70 08
70 01
70 46
70 03
70 31
70 19
71 03
70 54
70 26
70 28
70 47
70 48
70 51
70 49
70 37
70 42
71 49
70 37
70 45
70 43
70 42
70 32
70 43
70 53
70 37
70 34
70 30
70 51
1997
1995
. 2012
. 2000
1975
1983
1940
1959
1976
1986
1993
2004
1974
1914
2041
1964
1969
1968
2021
1950
1926
1992
1974
1967
1961
1955
i960
1976
2001
1864
1966
1996
1966
1923
2004
1986
1954
2007
1985
1950
MS.II
MS.II
CS.5
MS.II
CS.d
CS.d
MS.II
MS.II
MS.II
MS.II
MS.II
CS.5
MS.II
MS.II
CS.3
CS.2
CS.d I
CS.d
CS.d
MS.II
CS.di
MS.II
MS.II
MS.II
MS.II
CS.d
CS.d
CS.di
CS.5
Ms.n
CS.di
MS.II
MS.II
CS.d2
MS.II
CS.di
MS.II
CS.3
MS.II
CS.d2 •
CS.di
MS.II
CS.d2
CS.d2
CS.di
CS.d2
CS.d2
CS.d2
CS.d2
CS.d2
CS.d2
CS.3
CS.d2
CS.d2
CS.3
CS.d2
CS.d2
CS.i
CS.d
MS.II
MS.II
MS.II
MS.II
MS.II
MS.II
CS.d2
MAGNETIC ELEMENTS IN THE UNITED STATES.
37
Table I. — Observed magnetic elements and the values reduced to January i, i^o^ — Continued.
MARYLAND-<:ontinued
Station
Lati-
tude
N.
Longi-
tude
W.ofGr.
Date 1
Observed
1
1 Reduced to 1905-0
Ded'n
Incl'n
H. Int.
j Ded'n
Ind'n
H. Int.
Source
Backbone Mountain
o /
39 H
/
79 29
1897. 6
/
3 06.9 w
f
70 28. 7
c. g. s.
. 2020
/
3 29W
/
70 32
c.g.s.
. 2002
MS.II
Point of Rocks
39 i6
77 32
1896.8
_ . _ -
70 47. 2
. 2000
70 49
.1979
MS.II
Ellicott City
39 i6
7648
1896.8
4 44-3 W
70 38. 2
. 2006
5 ioW
70 40
• 1985
MS.II
EUicott City, S. M.
39 i6
7648
1900.4
5 12.9 W
5 28 W
CS.d
EUicott City. N. M.
39 i6
7648
1900.4
4 59-6 W
_
5 14 W
._ _.
CS.d
Pooles Island
39 17
76 16
1847.5
2 29. 3 W
71 52. I
.1898
5 58 W
71 03
.1894
CS.d I
Damascus
39 17
77 12
1896.9
4 02. 8 W
70 50. 4
. 1974
4 28W
70 53
.1953
MS.II
Corunna, N. M.
39 17
79 23
1900.4
3 22.9 w
70 30.0
. 2012
I 3 37 W
70 33
.1998
CS.d2
Baltimore, Fort
39 »6
76 35
1904.0
5 470 W
70 56. 2
• 1952
■ 5 50W
70 57
• 1950
CS.4
Baltimore, Patter-
39 17
76 35
1905- 5
5 52.7 W
70 44.8
. 1961
551W
70 45
. 1962
CS.6
son Park, II
Baltimore, Patter-
39 i8
76 34
1905- 9
5 55- 2 W
70 49- 5
.1958
5 52 W
70 49
. I96I
CS.6
son Park, III
Baltimore, Patter-
39 i8
76 35
1906.0
5 53-8 W
70 45- 6
• 1965
5 5» W
70 45
• 1968
CS.6
son Park, I
Massey
39 i»
75 48
1896.7
6 25.0 W
70 52.4
•1977
6 51 W
70 54
. I96I
MS.II
Rosanne
39 i8
76 43
1845- 4
2 10. 9 W
72 06. 6
.1869
5 53 W
71 20
.1856
CS.di
Woodstock
39 20
76 52
1897.3
_
. 1971
_- __
• 1952
MS.II
Lisbon
39 2o
77 04
1899.4
4 41.8 W
71 23.6
.1972
459W
71 26
.1955
CS.d2t
Maryland Heif;hts
39 20
77 43
1897.6
4 19. 2 W
70 50. 4
.1990
442W
70 53
• 1970
MS.II
Foley Mountam
39 21
79 30
1897. 7
3 16.0 W
70 31.5
. 2016
338W
70 35
.1998
MS.II
Betterton
39 22
76 04
1899.5
4 03.9 W
71 18.4
.1931
4 21 W
71 21
.1914
CS.d2t
Sykesville
39 22
7658
1899.4
6 24. W
70 53. 3
. 2004
6 42 W
70 56
.1987
CS.d2-
Lower Hill
39 22
79 29
1897. 7
3 16. 7 W
.2016
3 39W
.1998
MS.II
Finlay
39 24
76 32
1846. 3
2 18.5 W
71 47.9
.1896
558W
71 00
.1886
CS.di
Towson, M. L.
39 24
76 36
1897.3
5 46. 6 W
70 55.9
. i960
6 II W
70 58
.1940
MS.II
Bradshaw
39 25
76 23
1897.4
5 18.8 W
71 17.0
. 1928
543W
71 19
. 1908
MS.II
Frederick
39 25
77 25
1896. 8
4 4.2. 2 W
70 47. I
.1990
5 08 W
70 50
.1970
MS.II
Oakland, Sch. H.
39 25
79 25
1896. 8
3 14.5 W
70 42. 3
.2015
340W
70 45
• 1997
MS.II
Oakland, M. L.
39 25
79 25
1904.6
3 30. 7 W
70 41. I
• 1997
3 32 W
70 41
.1996
CS.5
Swanton
39 27
79 12
1899.4
3 36. 6 W
70 40. 4
. 2006
353W
70 43
.1991
CS.d2t
Belcamp
39 28
76 14
1896.8
6 05. 7 W
71 06.6
•1947
6 32 W
71 08
. 1926
MS.n
Osbomes Ruin
39 28
76 17
1845.5
2 32.4 w
71 47.6
. 1910
6 09 W
71 01
.1897
CS.di
Reistertown
39 28
76 50
1899.4
7 02.6 W
70 41.8
,2019
7 20 W
70 43
. 2002
CS.d2t
Allegany — Garre tt,
B. L.
Hydes
39 28
79 03
1898.5
3 09.1 w
3 30W
—
MS.II
39 29
76 29
1897.3
5 44.7 W
70 49.
•1959
6.09 W
70 51
.1939
MS.II
Cockeysville
39 29
76 39
1896.7
6 02. 1 W
71 00. 2
•1963
6 28W
71 01
. 1942
MS.II
Libertytown
39 29
77 14
1899.4
4 47- 2 W
70 50. 2
.1976
5 05 W
70 52
. i960
CS.d2t
Westemport
Snaegy Mountain
Hanord Furnace
39 29
79 02
1897.6
3 46. 2 W
70 51.0
.1998
409W
70 54
.1979
MS.II
39 29
79 29
1897. 7
3 37. 2 W
70 33- I
. 2012
4 ooW
70 36
. 1993
MS.II
39 30
76 16
1896.8
71 04.0
■
71 06
MS.II
Allegany — Garrett,
B. L.
Taylors HiU
39 30
79 03
1898.5
3 46.8 W
4O7W
—
MS.II
39 30
79 30
1897.7
3 31. 7W
70 40. 3
. 2006
3 54 W
70 43
. 1987 ,
MS.II
Creswell
39 31
76 17
1896. 8
71 07.6
71 09
MS.II
Havre de Grace
39 32
76 05
1899.5
5 24."4 W
70 58. 5
. 1939
5 42 W
71 00
.1923
CS.d2t
Belair, hotel
39 32
76 21
1896. 8
5 40. 7 W
70 25.0
. 2017
6 06 W
70 27
. 1996
MS.II
Belair, Dallams
39 32
76 21
1897.4
4 37. 2 W
70 14.6
5 01 W
70 16
MS.II
Fountain Green
39 33
76 18
1896.8
70 48. 3
70 50
MS.II
Allegany — Garret t,
B. L.
McHenry
39 33
79 01
1898.5
3 54."4 W
I'l'iVJ
----
MS.II
39 33
79 21
1899.4
3 36.3 W
70 43- 6
.1994
3 53 W
70 47
.1978
CS.d2t
Church ville
39 34
76 15
1897.4
5 43. 2 W
70 55.8
. 1952
6 08 W
70 58
.1934
MS.II
Lonaconing
39 34
78 59
1898. 7
3 51.0 W
70 46. 2
. 2000
4 10 W
70 50
.1985
MS.II
Fikes Hill, West
39 34
79 30
1897. 8
3 40.4 W
70 42. I
.2005
4 02 W
70 45
.1987
MS.II
Fikes Hill, East
39 35
79 29
1897. 8
3 40.3 W
70 41.9
. 2004
4 02 W
70 45
.1986
MS.II
Frenchtown
39 35
75 51
1840.6
71 40.2
.1988
71 00
. 1988
CS.I
Thomas Run
39 35
76 17
1897. 4
5 37.'8 W
70 43- 3
.1992
6 02 W
70 45
• 1973
MS.II
Hickory
39 35
76 20
1897.4
71 26.8
71 29
MS;II
Forrest HiU
39 35
76 23
1896.9
5 2;."5 W
71 06.6
.1955
I 5 51 w
71 08
.1936
MS.II
Westminster
39 35
77 00
1896. 8
5 06. 9 W
70 34- I
. 2019
1 5 33W
70 36
. 2001
MS.II
Westminster, S. M.
39 35
77 00
1900.5
445.PW
__
1 5 ooW
CS.d
Westminster, N. M.
39 35
77 00
1900.5
4 48. I w
__
5 03W
--
CS.d
Allegany — Garre 1 1,
B. L.
Elkton, H. S.
39 35
79 00
1898.5
3 54. I W
4 15W
—
MS.II
39 36
75 50
1896. 8
5 12.0 W
70 57.4
.1985
. 5 38W
70 59
.1970
MS.II
t Joint auspices of U. S. Coast and Geodetic Survey and Maryland Geological Survey (W.
38 . MAGNETIC TABLES AND CHARTS FOR 1905.
Table I. — Observed magnetic elements and the values reduced to January i, 1905 — Continued.
MARYLAND— Continued
SUtlon
Lati-
tude
N.
Longi-
tude
W.ofG.
Date
Observed
Reduced to 1905.6
Decl'n
Incl'n
H. Int. '
1
Decl'n
Incfn
H. Int.
Source
/
/
/
/
... . j
1
c. g. s.
/
/
c. g, s.
Elkton, S. M.
39 36
75 50
1900.4
5 21.3 W
__
5 35 W
CS.d
Elkton, N. M.
39 36
75 50
1900.4
5 51.5 W
6 06 W
CS.d
Hagerstown
39 38
77 43
1896. 8
4 34.2 W
71 04.2
. 1967
5 ooW
71 07
•195 1
MS.II
Hagerstown, N. M.
39 38
77 45
1900.4
4 36.7 W
70 56. I
.1967
451 w
70 57
•1956
CS.d2
Allegany — Garrett,
B. L.
New Germany
39 38
7858
1898.5
4 00. 2 W
4 21 W
MS.II
39 38
79 07
1899.4
3 59.0 W
70 50- 8
.1987
4 15W
70 53
•1973
CS.d2t
Accident
39 38
79 19
1899.4
3 44. 8 W
70 46. 3
.1987
4 02 W
70 49
• 1973
CS.d2t
Dublin (gabbro-
39 39
76.16
1897.4
1 10 00. 9 W
72 15.2
. 1862
10 25 w
72 17
.1849
MS II
rock)*
1
Scarboro
39 39
76 17
1897.4
1
70 39- 2
1
1
70 41
MS.II
Minefield
39 39
76 22
1897.4
6 53."7 W
72 04.8
• 1907 1
7 18 W
72 07
.18^3
1 MS.II
Parkton
39 39
76 40
1899-5
5 59. I W
70 58. 4
- 1956 .
6 17 W
71 00
. 1940
. CS.d2t
Cumberland
39 39
78 46
1896.8
4 02. 7 W
70 59- 4
. 1982 1
4 28 W
71 02
.1966
1 MS.II
Highland
39 40
76 22
1897.4
5 33- 2 W
71 03- 7
. 1968
5 58 W
71 05
.1950
. MS.II
Manchester
39 40
76 53
1899.4
! 5 34.7 w
70 59- 2
.1968
5 53 W
71 01
.1955
CS.d2t
CS.d2 •
Taneytown
39 40
77 "
1899.4
1 4 57.8 W
71 01.
.1963
5 16 W
71 03
.1950
Cumberland, M. L.
39 40
78 46
1897.6
1 4 06. 4 w
4 30W
1 MS.II
Allegany — Garrett,
■R T
•39 40
78 57
1898.5
4 02. 9 W
423W
' MS.II
JJ. Iv.
Emmitsburg
39 41
77 18
1842.3
71 46.3
■ 1957 1
71 02
• 1979
, CS.1
Frostburg
39 41
78 56
1840. 6
71 313
. 1982 !
.
70 41
. 2014
1 CS.i
Calvert
39 42
75 58
1899- 5
5 26.0 w
71 02.8
• 1953
5 43 W
71 03
■ 1942
CS.d2t
CS.d2 •
Rising Sun
39 42
76 03
1899.5
5 08.8 W
71 12.7
.1958
5 26W
71 13
.1948
Hancock
39 42
78 10
1897/6
4 24.9 W
71 02.3
• 1972
448W
71 05
. 1956
MS.II
Grantsville
39 42
79 09
1899.4 1
3 58.4 W 70 51.8
.1989
4 15W
70 54
•1973
CS.d2t
Cardiff
39 43
76 19
1897.4
6 51. I W 70 49.8
7 16 W
70 52
MS.II
Do.
39 43
76 20
1897.4 1
7 27.7 WI.76 37-7
.2011
7 53 W
70 40
.1998
MS.II
Do.
39 43
76 20
1897.4
8 35. 5 W ; 70 24. 9
. 1906 '
9 ooW
70 27
•1893
MS.II
Do.
39 43
76 20
1896.9
4 25.9 W 71 16.2
• 1949 1
451W
71 19
.1936
MS.II
Allegany — G arre 1 1,
B. L.
39 43
78 55
1898.5
4 04.2 W
1
4 25W
MS.II
MASSACHUSETTS
/
/
1
/ ' /
c. g. s.
/
/
1
c. g. s. 1
Nantucket Cliflf
41
17
70 06
1895. 5
12 II. I W
72 40.3
. 1780
12 37 w
72 27
.1788
CS.di
Sampson Hill
41
23
70 29
1846. 6
8 48. 7 W
73 24.5
• 1730
II 57 W
72 03
. 1812
CS.di
Indian
41
26
70 41
1846. 6
8 49.4 W
73 29. I
. 1719
12 02 W
72 08
. 1802
CS.di
Vineyard Haven
41
27
70 36
1906.9
12 22.6 W
72 19.0
.1799
12 16 W
72 21
.1797
CS.7
Tarpaulin Cove
41
28
70 45
1846. 6
9 12. I w
73 49. 8
.1704
12 25 w
72 28
.1789
CS.di
Fairhaven
41
37
70 54
1903.8
12 09.5 W
72 55.5
.1767
12 13 W
72 54
.1768
CS.4
Hyannis
41
38
70 18
1846. 7
9 21.6 W
73 49. 2
.1698
12 30 W
72 25
.1783
CS.di
Chatham
41
40
69 57
1860.7
II II. 6W
73 46. 2
. 1726
13 26 W
72 24
. 1813
CS.di
Shootfiying
41
41
70 21
1846. 7
9 40.3 W
73 56.5
.1689
12 48 w
72 32
. 1774
CS.di
Copecut
41
43
71 04
1844.8
9 08. 8 W
74 09.5
1 12 33 W
72 50
CS.di
Cromeset
41
44
70 43
1887.4
II 46 W
.
1 12 39 W
CS.d
VVellfleet
41
56
70 02
1860.7
10 43. 5 W
74 20. 2
.1677
12 58 w
72 58
.1768
CS.di
Manomet
41
56
70 36
1867. 6
i 10 24. 6 W
73 58.5
. 1731
12 17 W
72 52
. 1801
CS.di
Plymouth
41
58
70 39
1876.5
10 54. 8 W
73 48, 3
- 1727
12 24 W
73 00
.1777
NA.di
Mansfield
42
01
71 13
1905. 8
12 27.5 W
72 56.2
. 1762
12 25 w
72 57
. 1762
CS.6
Provincetown
42
03
70 II
1895.5
12 59-2 W
73 03. 4
.1747
13 25 w
72 50
. 1760
CS.di
Springfield
42
06
72 35
1859.6
8 39 W
74 14 9
. 1702
.11 10 W
72 57
•1777
CS.di
Sheffield
42
06
73 22
1905. 8
II II. 8W
73 10.8
.1753
I 11 loW
73 12
•1753
CS.6
Blue Hill
42
13
71 07
1845. 7
9 13.5 W
75 05. 6
. 1622
; 12 41 W
73 44
.1707
CS.di
Huntington
42
14
72 54
1905.8
12 10.9 W
73 15.0
• 1734
' 12 09W
73 16
.1733
CS.6
East ham pton
42
15
72 40
1862.5
9 04.4 w
74 06. I
. 1702
i II 32 w
72 51
.1775
CS.di
Worcester (M. L.)
42
17
71 48
1898. 9
II 42.6 w
73 20.0
•1732
12 05 W
73 14
•1737
CS.d2
Worcester (P. I.)
42
17
71 48
1898. 9
73 18.4
•1739
j __ .-
73 12
•1744
CS.2
Nantasket
42
18
70 54
1847. 7
9 37.4 W
74 15.7
.1644
' 13 02 w
72 50
.1734
CS.di
Boston
42
20
71 01
1906. 8
13 04.0 w
73 01.
. 1750
, 12 58 W
73 03
• 1747
CS.7
Cambridge
42
23
71 08
1895. 5
12 22.3 W 73 15.6
•1731
1 12 59 W
73 03
•1744
CS.di
Chesterfield
42
24
72 51
1859. 5
8 54 W 74 21.2
. 1691
II 37 W
73 07
. 1761
CS.di
Little Nahant
42
26
70 56
1849. 6
9 40. 9 W 74 29. 5
. 1640
12 58 w
73 01
.1734
CS.di
Swampscott A
42
27
70 56
1906. 7
' 12 02.6 W
72 40.4
.1815
II 57 W
72 42
. 1813 1
CI.
t Joint auspices of U. S. Coast and Geodetic Survey and Maryland Geological Survey (W. B. Clark, State geologist).
MAGNETIC ELEMENTS IN THE UNITED STATES. 39
Table I. — Observed magnetic elements and the values reduced to January i, 1905 — Continued.
MASSACHUSETTS— Continued
station
Lati-
tude
N.
W.ofGr.
Date
Observed
Reduced to 1905.0
Decl'n
Incl'n
H. Int.
Decl'n
Ind'n
1
H. Int. :
Source
/
/
/
. /
c. g. s.
'
/
c. g. s.
Swampscott B
42 27
70 56
1906.7
13 10. 2 W
72 28.8
.1856
13 04 w
72 30
.1854
CI.
Pittsfield
42 27
73 17
1905. 8
II 17.2 w
73 24.7
. 1722
II 15 w
73 25
. 1722
CS.6
Concord
.42 28
71 23
1905- 8
13 01. 7 W
73 20.3
. 1722
12 59 W
73 21
. 1721
CS.6
Wachusett
42 29
71 53
1860.7
8 48.0 W
74 28.8
.. 1675
II 09W
73 13
. 1762
CS.di
Coddon Hill
42 31
70 51
1849. 7
II 49. 8 W
15 06W
CS.d
Baker Island
42 32
70 47
1849. 7
12 17.0 W
74 'i8"6
.16^8
15 33 W
72 51
• 1792
CS.di
Salem
42 32
70 52
1906.8
14 28.4 w
73 40. 7
• 1738
14 22 W
73 42
. 1736
CS.7
Deerfield
42 33
72 36
1859. 5
9 25 W
74 35. 3
.1668
12 03 w
73 21
. 1739
CS.di
Fitchburg
42 35
71 48
1876. 6
lo 43. 6 W
74 09.8
• 1703
12 10 W
73 23
■ 1745
NA.di
Greenfield
42 35
72 35
1876. 6
10 20. 2 W
74 06.1
.1707
12 OOW
73 20
. 1746
NA.di
BeaconhiU
42 36
70 39
1859.5
12 03 w
74 45- 6
. I68I
14 34 W
73 22
. 1775
CS.di
Thompson
42 37
70 44
1859. 5
II 09 w
74 30.4
.1694
13 40 w
73 06
. 1788
CS.di
Athol
42 37
72 17
1905.8
12 13.0 W
73 24.3
.1718
12 10 W
73 25
. 1718.
CS.6
Annisquam
42 39
70 41
1849. 7
II 36.7 w
14 49 W
CS.d
Do.
42 39
70 41
1859. 5
-,
74 56. I
.1655
73 33
. 1749
CS.I
Lowell
42 39
71 20
1876. 6
10 47.9 w
74 19- 3
.1676
'12 '19 W
73 32
. 1725
NA.di
Rockport
42 40
70 37
1859. 5
II 37 W
75 05. 9
. 1627
1405W
73 43
. 1721
CS.di
Ipswich
42 41
70 50
1859. 5
II 14 w
74 37. 3
• 1659
13 42 w
73 14
. 1753
CS.di
Lawrence
42 42
71 12
1905.8
12 35. 3 W
73 31.6
. 1703
12 32 W
73 32
. 1702
; CS.6
North Adams
42 42
73 08
1876. 6
10 30. 8 W
74 15-3
. I7I0
12 12 W
73 31
• 1748
1 NA.di
Willianistown
42 42
73 12
1898. 9
II 31.1 w
73 28.4
. 1728
II 50 w
73 24
. 1732
CS.d2
Newburyport
42 48
70 51
1905.8
13 22.0 w
73 35. 7
.1697
13 19 w
, 73 36
. 1696
CS.6
Do.
42 48
70 49
1905.8
13 22. 2 \V
73 31.9
. 1692
13 19 w
73 33
. 1691
CI.
MICHIGAN
Stureis
Vpsilanti
Do.
Jackson
Marshall
Ann Arbor
Kalamazoo
Do.
Detroit, Ft. Wayne
Detroit
Detroit, Belle I.
Do.
South Haven
Eaton Rapids
R'ussel Island
Hastings
Lansing
Fort Gratiot
Do.
Flint
St. Johns
Grand Haven
Do.
Stanton
Wahley
New London Pt.
St. Louis
Saginaw
Forestville
Do.
Big Rapids
Sand Beach
Harbor Beach
Sand Point
Do.
Ludin^ton
Gladwin
Cadillac .
/
/
41 48
85 26
i(
42 14
83 36
il
42 14
83 36
i(
42 15
84 23
i<
42 16
84 58
•
42 17
83 43
42 18
85 35
42 20
85 34
42 18
83 06
42 20
82 58
42 20
82 58
42 20
82 58
42 24
86 17
42 32
8438
42 37
82 31
42 39
85 18
42 44
84.32
43 00
82 25
43 00
82 25
43 00
83 39
43 00
84 32
43 04
86 15
43 05
86 13
I
43 18
85 05
43 22
82 32
43 22
82 32
K
43 24
84 36
ll
43 25
83 58
II
43 40
82 34
43 40
82 36
43 41
85 31
43 51
82 39
43 51
82 39
43 54
83 20
43 55
83 23
II
43 57
86 28
43 58
84 23
44 14
85 20
1900.8
1894.0
1902.4
1905.9
1876.8
1905.9
1900.9
1900.9
I90I.6
1900.9
1904.9
1906.3
1904.8
1870. 7
1903.8
1905.8
1905-8
1873. 5
1903. 8
1905.8
1905.8
1904. 8
1891.6
1905.8
1860.4
1905.6
1876. 8
1876. 7
1873.5
1905.6
1905.8
1901.5
1905.6
1905.6
1858.7
1904.8
1905.8
1905.8
3 02.
r4 42
^4 29
^5 02
r4 20
r4 37.6
'4 44. 7
t These observations were made by C. S.
26.
30
04.
30.
51.
fS 00.6
57.9
09.5
08.5
II
40.0
23.4
28.4
22
53.8
39.4
46
34.7
08.3
41
54
48.9
36.2
54
24
10.5
c. g. s.
.1863
802
809
825
823
799
787
788
775
775
776
763
713
721
756
732
773
713
692
705
680
693
676
687
695
633
660
647
695
669
659
Woodard.
36 E
45 W
20 W
18 W
01 E
00 W
11 E
57 E
07 W
22 w
16 w
28 w
12 E
04 W
22 E
14 W
36 W
06 W
33 W
17 W
10 E
59 E
13 w
07 W
07 W
47 W
23 w
40 W
05 W
27 E
49 W
33 W
34 W
40 W
•37 E
02 W
36 w
72 27
71 28
73 04
73 03
72 51
73 01
72 58
73 10
73 08
73 II
73 10
73 23
73 28
73 49
73
54
73
39
73
46
73
35
74
08
74 03
73
54
73
22
73
09
74
24
74
24
74
10
74 42
74
29
74
22
74
20
74 38
74
45
c. g, s.
. 1850
. 1805
. 1802
.1828
. 1810
• 1791
.1787
.1789
•1775
.1771
.1779
.1766
.1724
. 1723
.1758
.1732
.1756
. 1715
. 1706
. 1706
. 1673
.1686
.1693
.1688
.1698
.1634
.1660
. 1650
.1695
. 1671
.1661 1
CS.d2
CS.dit
CS.dt
CS.6
LS.di
CS.6
CS.d
CS.d2
LS.3E
CS.d2
LS.3E
LS.
LS.3E
CS.i
LS.3E
CS.6
CS.6
LS.di
LS.3E
CS.6
CS.6
LS.3E
CS.di
CS.6
LS.di
LS.
LS.di
LS.di
LS.di
LS.
CS.6
LS.3E
LS.
LS.
LS.d I
LS.3E
CS.6
CS.6
40 MAGNETIC TABLES AND CHARTS FOR 1905.
Table I. — Observed magnetic elements and the values reduced to January j, 1^03 — Continued.
MICHIGAN— Continued
1
Observed
'
Reduced to 1905.0 [
.
Lati-
Longi-
Station
tude
tude
Date
1
Source
N.
W.ofGr.
Decl'n
Incl'n 1
H. Int.
Decl'n
Incl'n
H. Int.
/
/
/
/
c. g, s.
/
1
,
c. g. 8. ;
Au Sable
44 24
83 19
19OI.5
I 24.0 W
_«
I 31W
LS.3E
Do.
44 24
83 20
1905.6 1
I 33- 7 W 75 13 1
• 1573
I 32 w
75 13 . 1573 1
LS.
Roscommon
44 30
84 34
1905-8 1
54- 5 W
75 16.8
. 1608
053W
75. 17 . 1610 1
CS.6
Frankfort
44 38
86 15
1904. 8 1
I 21.3 E
I 21 E
LS.3E
Sturgeon Point
44 42
83 16
1905. 6 ,
3 14-4 W
75 15
.1566
3 13 W
75 15 • 1566
LS..
44 43
83 H
1858. 7 .
I 02 E
75 59
-1540
2 14W
75 20
.1558
LS.di
Glen Haven
44 54
86 02
1897. 7
I 13.5 w
75 50
I 32 w
75 49
LS.3E
South Manitou I.
45 02
86 06
1860.7
76 01
- 1549
- __
75 25
• 1569 !
LS.I
South Manitou I.
45 02
86 05
1897. 7
25.0 E
75 32
07 E
75 30
LS.3E
Thunder Bay I.
45 02
83 12
1905-7
5 02.2 W
75 46
.1531
5 01 W
75 46
• 1531
LS.
Thunder Bay
45 02
83 09
1858.6
I 14 w
76 24
. 1494
430W
75 45
. 1518 !
CS.di
Gaylord
45 03
84 40
1905.7
41.9 W
75 32.7
.1568
40 W
75 33
.1567
CS.6.
North Port
45 08
85 36
1860.7
.
76 06
- 1540
_ >_
75 28
. 1564 1
LS.di
Do.
45 08
85 36
1897-7
40. 5 w
75 45
58W
75 42
LS.3E
Plum Island
45 18
86.56
1897.7
I 55- 6 E
75 54
I 38 E
75 51
_- - _
LS.3E
Charlevoix
45 19
85 15
1897. 7
34-4W
75 34
053W
75 31
__ _ _
LS.3E
Presque Isle
45 22
83 30
1905-7
2 47-6 w
75 57
.1496
2 46 w
75 57
.1495
LS.
Petoskey
45 23
84 56
1897.8
04. I W
75 55
23W
75 52
LS.3E
Harbor Point
45 25
84 59
1902.7
01. w
75 43. I
.1549
006WI 75 43 I.I55I
CS.3
Hammond
45 30
84 02
1905-7
2 32.6 W
76 08
. I52I
2 31 w
76 08 . 1520
LS.
St. Martins I.
45 30
8647
1897. 7
39- E
75 43
----
21 E
75 40
_-__
LS.3E
Cheboygan
45 38
84 28
1897- 8
53. W
76 23
----
I iiW
76 20
- --_
LS.3E
45 44
84 28
1897-8
I 51.0 W
76 22
_ -_ _
2 09W
76 19
__-_
LS.3E
Beaver Island
45 44
85 34
1897. 7
04. 8 E
76 06
__-._
14W
76 03
-__ -
LS.3E
Do.
45 45
85 30
i860. 8 1
2 43. oE
76 43
.1492
30W
76 08
. 1516
LS.di
Escanaba
45 45
87 03
.1904-7 ,
054.5W
75 40
-1548
055W
75 40
.1548
LS.3E
Waugoshance Pt.
45 46
85 00
1897.8 1
09. 2 W
24 W
LS.3E
McGulpins Point
45 47
8446
1896. 8
54-8 w
_ - _-
I 17 W
__ __
LS.3E
Mackinac Sts.,Dt
45 47
84 38
1903-2
I 48. 2 W
76 03. 4
.1527
I 52 w
76 03
.1528 i
CS.3
Mackinac Sts.,Ct
45 47
84 41
1903-2
I 01.2 W
76 02. I
. 1529
I 05 w
76 02
• 1531
CS.3
MackinacSts.,Bt
Mackinac Sts,, At
45 49
8438
1903- 2
I 00.5 w
76 06.8
. 1526
I 04 w
76 07
. 1528 1
CS.3
45 49
84 44
1903.2
48. 2 W
76 01.3
.1537
52 w
76 01
. 1538 ,
CS.3
Round Island
45 50
84 32
1902.7
I 43.9 w
76 05. 3
.1518
I 49 W
76 05
.1519
CS.3
St. Ignace
45 51
84 42
1897.8
I 36.5 w
76 02
I 55 W
75 59
LS.3E
Mackinac I., brow
45 51
84 35
1902. 7
I 46.4 w
I 52 w
1
CS.3
Mackinac I., Ft., E.
45 52
84 37
1905-7
I 49. 2 W
76 05. 7
- I5I9
I 48 w
76 ^
.1519 1
CS.3
Mackinac L, Ft., W.
45 52
84 37
1905-7
I 53-4 W
76 06.4
-I5I9
I 52 w
76 07
.1518 1
CS.3
Mackinac I., Pte.
45 53
84 37
1902.7
I 56. 8 W
76 07. 8
. 152 1
2 02 W
76 07
.1522 1
CS.3
aux Pins
Mackinac I.
45 52
84 38
1905-7
2 02. 2 W
76 07
-1497
2 01 W
76 07
.1496
LS.
St. Helena I.
45 52
84 52
1897-8
35- 8 W
76 08
54W
76 05
LS.3E
Goose L
45 56
84 26
1896. 7
I 07.9 W
_- ._
I 30 w
■
LS.3E
Detour
45 57
83 55
1905-7
4 12.3 w
76 29
-1438
4 II w
76 29
_ _« _
LS.
Manistique
45 58
86 13
1897.8
15. 2 E
75 56
03 W
75 53
LS.3E
Drummond I.
45 59
83 53
1897. 7
3 48.3 W
76 20
407W
76 17
LS.3E
Detour
46 00
83 55
1897. 7
3 50. 8 W
76 29
4 loW
76 26
LS.3E
Robinson
46 04
84 25
1896. 7
I 31. oW
I 54W
_- -_
LS.3E
Lime Idand, n. end
46 06
84 00
1897. 6
3 50. 9 W
76 20
-__ -
4 loW
76 17
LS.3E
Naubinway
Maple Hill
46 07
85 33
1897.8
003.4W
76 17
«-__
22 W
76 14
LS.3E
46 09
84 47
1896. 6
054-3W
I 17 W
_ _- _
LS.3E
Neebish Island
46 20
84 II
1897-6
3 29. I W
76 54
348W
76 51
_- - -
LS.3E
Newberry
Head St. Marys
46 20
85 31
1905-7
37- 3 W
76 20. 7
.1488
36W
76 21
.1487
CS.6
46 26
84 31
1906.8
2 11.4W
76 32
.1454
2 08W
76 32
.1453
LS.
River Range
Round Island
1
46 27
84 31
1896.6
2 04. 9 W
_
2 28W
- _ _ _
LS.3E
Salt Point
46 28
84 52
1896. 5
1 2 08. 5 w
-_ _-
2 32 w
_ _ _ _
LS.3E
Bessemer
46 28
90 04
1905.6
3 21. I E
75 32.3
. I6I6
3 21 E
75 32
.1616
CS.6
Point Iroquois
46 29
8438
1896.5
1 I 34. 1 w
I 57 w
-- - _
LS.3E
Sault Ste. Marie, old
46 30
84 20
1902.8
, 2 30.9 w
.76 58.4
. 1426
2 36 w
76 58
. 1428
CS.3
Ft. Brady
1
Sault Ste. Marie,
46 30
84 24
1902. 8
2 20.7 W 76 55.0
.1429
2 26W
76 54
•1431
CS.3
new Ft. Brady
1
1
Do.
46 30
84 24
1906.8
' 2 31.0 W 76 53.9
-I43I
2 27 W
76 54
.1429
CL
Marquette
46 33
87 22
1902. 8
2 13.0 E 75 22. 2
. 1600
2 08E
75 22
. 1602
CS.3
Marquette, A
46 33
87 23
1904. 6
I 36. 5 E 76 10
. 148 1
I 36 E
76 10
. 148 1
LS.3E
Grand Marais
46 41
85 58
1904.6
36. I W 1 76 39
.1438
37 W
76 39
.1438
LS.3E
Near Crisp, A
46 44
85 15
1895.5
1 22. 7 W
1 .-
49 W
i .- -.
LS.3E
t These observations were made on the ice.
MAGNETIC ELEMENTS IN THE UNITED STATES. 41
Table l.-— Observed magnetic elements and the values reduced to January i, 190S — Continued.
MICHIGAN— Continued
Observed
Reduced to xoos.o
SUtion
Lati-
tude
N.
Longi-
tude
W.ofGr.
Source
Date
Decl'n
Ind'n
H. Int.
1 Decl'n
Incl'n
H. Int.
/
/
/
/
c. g. «.
1
/
/
c. g. s.
Whitefish Point
4646
8457
1895.8
I 49.5 w
-- - _
2 15 W
-- --
r---
LS.3E
Do.
4646
84 57
1906.6
2 09.7 W
76 52
• 1474
2 06 W
76 52
.1473
LS.
Ontonagon
46 52
89 20
1880.6
4 41.5 E
77 16.6
.1427
3 12E
76 57
.1432
, CS.di
Do.
46 52
89 20
1904.7
3 02.3 E
77 00
• 1425
3 02E
77 00
.1425
1 ^^E
Portage Entry
46 58
88 25
1904.6
I 41. 4E
76 33 :
. 1443
I 41 E
76 33
.1443
LS.3E
Houghton
47 07
88 34
1902.8
I 01. E
76 40. I
.1464
56E
76 40
.1464
CS.3
Portage Canal
47 14
88 38
1904.6
3 32. oE
77 07
.1397
3 31 E
77 07
.1397
LS.3E
Tamarack Mine fa) t
Tamarack Mine (b) f
47 16
88 28
1904.7
77 17
.1389
_ -_
77 17
.1389
LS.3E
47 16
88 28
1904.7
5 22. oE
77 44
.1307
5 22E
77 44
•1307
LS.3E
Copper Harbor
47 28
87 51
1873.6
^""^'l^
78 02
.1350
I 58 E
77 35
. 1360
LS.di
Do.
47 28
87 52
1904.7
I 31.8 E
77 34
•X339
I 31 E
77 34
•1339
LS.3E
Isle Royal
Rock of Ages
Menagerie I.
Rock Harbor (2)
47 52
89 14
1904.6
6 09.6 E
78 38
. 1263
6 09E
78 38
. 1263
LS.3E
47 52
89 18
1906.8
II 12. oE
79 04
•1239
II 15 E
79 04
. 1238
LS
47 57
88 45
1906.8
57-4 E
77 16
.1407
I 01 E
77 16
•1405
LS.
48 05
88 34
1906.8 '
2 53- 4 E
. 1328
2 57E
. 1326
LS.
Rock Harbor (i)
48 06
88 34
1906.8
I 27.9 E
77 47
• 1355
I 31 E
77 47
.1353
LS.
Scoville Pt.
48 10
88 27
1906.8
5 17-9 E
78 33
. 1289
5 21 E
78 33
. 1287
LS.
Passage I.
48 14
88 21
1906.7
4 05. 8 E
78 22
. 1299
4 09E
78 22
. 1297
LS.
Gull Island.
48 16
88 16
1906.7
2 23. 6 E
78 n
. 1306
2 27E
78 n
.1304
LS.
MINNESOTA
/
/
/
f
c. g. s.
/
/
c. g. s.
Heron Lake
43 49
95 18
1900. 8 ;
8 58. 2 E
73
15.6
. 1802
9 03E
73 19
.1797
CS.d2
Mantorville
44 05
92 46
1900. 8
6 23. I E
73
36.5
.1750
6 22E
73 38
. 1744
CS.d2
Mankato
44 II
93 59
1900.8
8 59. 5 E
73
31.0
.1775
9 02E
73 34
• 1769
CS.d2
Watopa
44 14
92 02
1893. 6
7 14. 1 E
6 56E
CS.d
Lake Benton
44 17
96 18
1900.8 1
9 15.9 E
73
39-6
• 1737
9 20E
73 43
.1732
CS.d2
Wabasha
44 18
92 02
1876.6
8 04. 3 E
74
21.6
. 1717
6 22E
74 12
.1697
LS.di
Lake City
44 23
92 08
1893.7
7 02. 2 E
6 40E
CS.d
Red Wing
Buck HiU
44 34
92 32
1878. 8
7 49. 6 E
74
i;:;
.^6^6
6 20E
74 05
.^676
LS.di
44 43
93 17
1893-5 '
8 17.2 E
7 56 E
CS.d
Marcotta
44 49
93 03
1893- 5 i
8 33. 7 E
__
8 12E
._ -.
CS.d
Granite Falls
44 50
95 33
1900. 8
8 56. 2 E
73
37-8
.1769
8 59E
73 40
.1765
CS.d2
Wallace
44 54
93 05
1893.5
10 II. E
9 48E
CS.d
Fort Snelling
44 54
93 II
1880. 7
10 13.7 E
74 55. 6
.1669
853E
74 43
.1664
CS.di
Woodbury
44 55
92 57
1893.5
8 30, 4 E
-_
8 07E
_- ..
CS.d
Hopkins
44 55
93 27
1893.5
8 12.3 E
__
_--_
7 52 E
.- __
CS.d
Ramsey
44 59
93 00
1893.5
10 00. 1 E
__
-_--
__- _
9 42E
.- __
....
CS.d
Minneapolis, Univ.
grounds.
St. Paul
44 59
93 14
1891.6
9 04.9 E
74
29.5
.1682
8 41E
74 28
.1677
CS.di
45 00
93 10
1900.8
8 41.4 E
74
39.7
.1673
8 42E
74 42
.1669
CS.d2
Motmd View
45 06
93 10
1893.5 ;
9 07. 5 E
8 51E
CS.d
Benson
45 20
95 36
1900.7
9 23. 3 E
74
26."3
. 1710
9 25E
74 29
. 1706
CS.d2
St. Cloud
45 35
94 II
1900. 8
9 08. 4 E
75
01.9
.1644
9 loE
75 04
. 1640
CS.d2
Royalton, S. Base
45 44
94 12
1905.7
8 44.4 E
75
06.6
. 1609
8 44E
75 06
. 1610
CS.6
Osakis
45 50
95 08
1906.5
9 53.3 E
75
27.9
. 1603
9 51E
75 27
. 1604
CS.6
Alexandria
45 55
95 24
1900. 8
10 37-7 E
75
18.8
. 1605
10 40 E
75 21
. 1601
CS.d2
Dalton
46 10
95 55
1906.5
10 13.6 E
75
03.1
. 1629
10 II E
75 02
. 1630
CS.7
Breckenridge
46 17
96 35
1900.7
12 01. 7 E
75
21. I
. 1576
12 03 E
75 23
•1572
CS.d2
Brainerd
46 21
94 J2
1905. 7
7 51. 8E
75
24.8
.1585
7 51 E
75 24
.1586
CS.6
Wadena
46 28
95 09
1900.7
9 25. 7 E
75
17.6
.1594
9 28E
75 20
• 1590
CS.d2
Douglas
46 37
93 09
1905.7
7 34. 3 E
76
06.8
• 1520
7 34 E
76 06
. 1521
CS.6
Duluth, Minnesota
Pt.
Do.
46 44
92 04
1902. 8
8 40. aE
76
08.4
.1524
8 41 E
76 09
.1522
CS.3
46 45
92 03
1902.0
II 54 E
..
_...
....
II 56 E
....
UE.3E
Do.
46 45
92 05
1901. I
8 15 E
__
. 8 17E
_. __
UE.3E
Duluth, old sta.
46 47
92 05
1902. 8
12 25. 3 E
76
27.4
. 147 1
12 26 E
76 28
. 1469
CS.3
Duluth Ship Canal
46 47
92 06
1904.2
8 59 E
9 ooE
_ _ _ _
UE.3E
Duluth, Met. Obsy.
46 47
92 07
1902. 8
12 17. 4E
74
59.7
. 1649
12 18E
75 01
• 1647
CS.3
Detroit City
46 50
95 52
1900.7
10 20. 2 E
75
26.0
.1572
10 23 E
75.28
•1569
CS.d2
Glyndon
46 52
96 35
1906.5
10 29. 3 E
75
43.3
.1570
10 27 E
75 43
.1572
CS.7
Two Harbors
47 02
91 39
i9d2.o
6 12 E
6 13E
UE.3E
Do.
47 03
91 38
1905.8
4 .15. 5 E
76
53.3
.1448
4 15E
76 53
.1448
CS.6
Devils I.
47 05
90 44
1902.0
5 54 E
--
5 56 E
_ _ _ -
UEE.3
t Station (a) was 4,760 feet underground, whereas station (b) was on the surface of the copper mine.
42 MAGNETIC TABLES AND CHARTS FOR 1905.
Table I. — Observed magnetic elements and the values reduced to January i, 190^ — Continued.
MINNESOTA—Continued
Observed
1
Reduced to ioo<
;.o
.
Lati-
tude
^uT"
1
Station
tude
Date
Source
N.
W.ofGr.
Decl'n
Ind'n
H. Int.
1
Decl'n
Incl'n
H. Int.
1
/
/
/
/
c.g.s.^
r
/
c. g. S.
1
Walker
47 07
94 36
1900.7
9 50. 7 E
76 10. I
■ 1506 1
9 53E
76 12
.1502
CS.d2
Split Rock*
47 "
91 23
1902.0
4 26 E
_
4 27E
_ _ _ _
UE.3E
Lake Superior
47 15
90 54
1902.5
5 00 E
_
1
5 oiE
_ _ - _
UE.3E
Deer River
47 22
93 44
1905.8
8 38. I E
76 31.4
• 1481 1
8 38E
76 31
. 1482
CS.6
Lake Superior
47 30
90 54
1902.5
5 46 E
1
5 47E
UE.3E
Fosston
47 35
95 44
1905- 8
8 52. 4E
76 21.4
• 1513 1
8 52 fi
76 21
• 1514
CS.6
Tilden
47 42
96 20
1905.8
II 12. 3 E
76 35.9
.1478
11 11 E
76 36
1479
CS.6
Grand Marais*
47 45
90 21
1887.4
13 12 E
12 28 E
UE.3E
Crookston
47 49
96 37
1900.7
10 52. 2 E
76 14.3
• 1498 1
10 58 E
76 16
. 1495
CS.d2
Tower
47 50
92 12
1905.8
18 28.4 E
73 04. 7
. 1969 '
18 28 E
73 04
. 1969
CS.6
Northome
47 53
94 17
1905-8
7 58. 9 H
76 58.9
.1427
7 58E
76 59
• 1427
CS.6
Stephen, W. Base
48 27
96 51
1905.8
II 44- I E
76 53.9
. 1444
II 43 E
76 54
.1444
CS.6
MISSISSIPPI
/
/
.
/
/
!
c. g. s.
/
/
c. a. s.
Ship Island
30 13
88 58
1903.0
4 54. E
60 29. 7
.2729
4 56 E
60 37 '2719
CS.3
Shieldsboro
30 18
89 19
1896. I
5 12. I E
60 21.9
. 2766 1
5 12E
60 43 i. 2732
CS.di
East Pascagoula
30 21
88 33
1855- I
7 08. 9 E
_
.2882 1
4 35E
1.2772
CS.di
Do.
30 21
88 33
1848.4
60 27.2
60 20 '
CS.d
Pascagoula
30 21
8^33
1875.4
6 19. 5 E
_
5 12E
._ _. 1
NA.d
Mississippi City
30 23
89 03
1903.
4 54. 4 E
60 43.9
.2717
458E
60 50 ]. 2707
CS.3
PoplarviUe
30 50
89 30
1896. I
5 20. 9 E
60 48. 2
.2742
5 22E
61 08 '. 2708
CS.di
Woodville
31 07
91 18
1905. I
6 07. 8 E
61 19.0
.2682
6 07 E
61 19 1. 2682
CS.5
Magnolia
31 10
90 29
1905. I
5 43- 4 E
61 25.4
.2678
5 43E
61 25 . 2678
CS.5
Liberty
31 10
90 50
1905. I
5 54- 4 E
61 22.3
• 2679 ,
5 54E
61 22 . 2679
CS.5
MeadviUe
31 29
90 54
1905. I
5 59- 7 E
61 44.4
.2667 1
6 ooE
61 44 . 2667
CS.5
Natchez
31 34
91 24
1890.3
6 29. 8 E
61 06.0
.2711 1
6 16E
61 27 1. 2669
CS.di
Brookhaven
31 35
90 27
1905. I
5 40. 8 E
61 56.8
.2645
5 41E
61 57 .2645
CS.5
Ellisville
31 37
89 12
1901.3
4 54.4E
62 01.9
■2653
4 58E
62 13 .2637
CS.d2
Waynesboro
31 40
88 38
1905.2
4 48. 6 E
62 II.O
- 2636 1
4 48E
62 1 1 . 2636
CS.5
Fayette
31 43
91 04
1905. I
6 II. 4E
62 04. 3
2640
6 iiE
62 04
. 2640
CS.5
Hazlehurst
31 53
90 23
1905. I
5 40. 4 E
62 18.8
. 2622
5 40E
62 19
. 2622
CS.5
Jackson
Vicksburg
32 20
90 II
1901. 2
5 57- oE
63 10. I
.2580 1
6 02E
63 20
.2565
CS.d2
32 21
90 53
1890.4
6 21. oE
62 01. 7
.2650 1
6 06E
62 23 j. 2612
CS.di
Forest
32 22
89 28
1901.3
^ 5 25.6E
62 44.8
. 2614
5 30E
62 53 '• 2599
CS.d2
Meridian
32 23
88 44
1901.3
4 44.6 E
62 47.0
. 2617
4 48E
62 58 ;.2602
.CS.d2
Canton
32 36
90 01
1905. I
5 34- 4 E
62 56.7
.2582
5 34E
62 56 j.2582
CS.5
Yazoo City
32 51
90 21
1901. 2
5 27. 6 E
62 58.5
.2605
5 33E
63 09 . 2590
CS.d2
Rolling Fork
32 54
90 53
1905.0
6 06.2 E
63 16. I
•2573
6 06E
63 16 .2573
CS.5
Kosciusko
33 04
89 35
1905. I
5 21. 6E
63 37. I
■2553
5 21 E
63 37 . 2553
CS.5
Macon
33 07
88 33
1905.2
4 39. 9 E
64 02. 3
■ 2523 1
4 40E
64 02 . 2524
CS.5
Ackerman
33 19
89 10
1905.2
5 15. 8 E
64 00. I
. 2522
5 16 E
64 00 L 2523
CS.5
Greenville
33 24
91 05
1905.0
6 01. E
63 39. I
.2544 1
6 01 E
63 39
•2544
CS.5
Indianola
33 26
90 40
1905.
6 01.5 E
63 42. 9
.2544
6 02E
63 43
.2544
CS.5
Winona
33 30
89 43
1901. 2
5 08.7E
63 47-9
.2552 '
5 12E
63 56
.2537
CS.d2
Greenwood
33 31
90 13
1903. I
5 41.8 E
63 49. I
.2560
5 46E
63 53
•2552
CS.3
West Point
33 36
88 39
1901. 2
4 42.3 E
64 05.5
• 2530
4 46E
64 14
.2515
CS.d2
Grenada
33 47
89 50
1872. 2
6 25. I E
64 24.0
•2541
4 55E
64 23
.2493
CS.di
Rosedale
33 51
91 02
1905.0
5 56. 4 E
64 II. 5
. 2526
5 56 E
64 12
.2526
CS.5
Charleston
34 02
90 05
1903. I
5 22. 5 E
64 24. 3
.2511 '
5 27E
64 29
.2503
CS.3
Clarksdale
34 12
90 34
1905.0
6 08. 2 E
64 48. 7
.2476
6 08E
64 49 |. 2476
CS.5
Tupelo
34 16
88 43
1901. 2
4 27. 4 E
64 35. 7
.2501
4 26E
64 43
. 2486 1
CS.d2
Oxford
34 22
89 32
1901. 2
5 31.8 E
65 00. I
. 2488 1
5 34 E
65 09
■2473 ,
CS.d2
Sardis
34 29
89 57
1903.0
5 31. 9E
65 00.9
.2451
5 36E
65 05 ;. 2443
CS.3
Tunica
34 42
90 24
1905.
. 5 II. 4E
65 13.6
•2445
5 II E
65 14 .2445
CS.5
Holly Springs
34 47
89 26
1901. 2
5 30. 6 E
65 30.4
■2444 ,
5 32E
65 39 . 2429
CS.d2
Hernando
34 50
90 00
1903.
5 07.4 E
65 20.3
•2440
5 II E
65 24 .2432 1
CS.3
Corinth
34 55
88 31
1905.9
5 41.1 E
65 57. 2
.2375
5 41E
65 55 • 2379
1
CS.6
* Mean of 3 stations; local disturbance.
MAGNETIC ELEMENTS IN THE UNITED STATES. 43
Table I.— Observed magnetic elements and the values redtwed to January i, ipo^ — Continued.
MISSOURI
Observed
1
Reduced to zoo<;.o 1
Lati-
Longi-
1
Soiurce
station
tude
tude
Date
N.
W.ofGr.
Decl'n
Incrn
H. Int.
Decl'n
Incl'u
H. Int.
Gatewood
/
36 32
/
91 03
1880.5
/
7 II. 8E
/
c. g. s. I
. 2310 1
/
6 18E
/
c. g. s.
.2271
Nl.di
Doniphan
36 38
90 47
1880.5
7 04. 6 E
.2305
6 loE
_ - _-
.2272
Nl.di
Cassville
36 42
93 51
1905.8
7 12. 1 E
67 06. 8
.2311
7 loE
67 05
•2313
CS.6
West Plains
36 44
91 50
1905. 8
6 18. .^E
67 04.0
.2322
6 17E
67 03
• 2325 ^
CS.6
Poplar BluflF
36 44
90 22
1880.5
6 44.7 E
67 14-
.2312
5 50E
67 17
. 2276
NLdi
Poplar Bluff
36 45
90 22
1875-4
7 12. 5E
5 57E
_ _ _ _
,
NA.d
Charleston
3656
89 19
1880.5
5 43.iE
67 47-
. 2276 ,
4 39E
67 50
. 2246
Nl.di
Howell County
3656
91 55
1880. 6
7 31-3 H
67 37. I
.2272
634E
67 40
.2241
Nl.di
Greenville
37 07
90 26
1905.4
5 44.8 E
67 17.5
•2304
5 44E
67 17
•2305
S§-5
Mount Vernon
37 07
93 49
1905.4
7 10. E
67 32.3
.2280
7 09 E
67 32
. 2281
CS.5
Piedmont
37 08
90 41
1880.5
7 22. 8 E
67 35.4
. 2302
6 24E
67 38
.2274
Nl.di
Springfield
37 16
93 15
1879. 7
8 35. 8 E
67 12.6
•2353
7 42 E
67 15
. 2320
Nl.di
Cape Girardeau
37 18
89 33
1865. 2
635 E
4 40E
__ __
CS.d
Lutesville
37 20
89 59
1880.5
6 13. 9 E
67 51.7
. 2281
5 19E
67 55
•2253
Nl.di
Houston
37 19
91 55
1880.6
7 34.9 H
67 16.4
.2314
6 30E
67 19
.2281
NLdi
Do.
37 20
91 58
1905.4
6 23. 8 E
67 15.2
.2298
* 57E
67 15
. 2300
S§-5
Marshfield
37 21
92 50
1903.6
6 54. E
.2302
. 2298
CS.4
Lamar
37 30
94 16
1905.6
8 19. 5 E
68 20."6
. 2219
8 18E
68 20
.2221
1 CS.6
Bolivar
37 35
93 24
1881.6
8 14. 6 E
67 49- 2
•2295
7 30 E
67 54
.i263
Nl.di
Iroaton
37 36
90 38
1890.9
2 12.5E
I 48 E
CS.d
Arcadia
37 36
90 41
1880.5
6 48. 7 E
68 33. 9
.2249
5 49E
68 37
.2221
Nl.di
Pilot Knob, base*
37 37
90 37
1880.5
II 08.4E
69 59-2
. 2112
10 09 E
70 02
.2084
Nl.di
PUot Knob, top*
37 37
90 37
1880.6
3 45-4 E
. 2120
2 46 E
_
. 2092
Nl.di
Buffalo
37 37
93 06
1881.6
8 07. E
67 57.0
.2278
7 18 E
68 02
.2247
Nl.di
Bolivar
37 38
93 23
1903.6
7 16. 7 E
67 48.4
.2258
7 20E
67 51
.2253
CS.4
Wittenberg
37 39
89 33
1865. 3
647 E
4 52E
__ __
CS.d
Salem
37 39
91 31
1880. 6
6 56. 3 E
68 oi.'s
.2278
6 ooE
68 03
•2249
Nl.di
Lebanon
37 40
92 42
1880. 6
7 46. E
67 58.6
.2288
6 51E
68 00
.2259
NLdi
Waynesville
37 50
92 13
1905.6
6 38. 8 E
68 II. 7
.2236
637E
68 II
.2237
CS.6
Decaturville
37 54
92 43
1881.6
8 56. 6 E
_ _ _-» _
•
8 06E
_ _ __
Nl.di
Potosi
37 56
90 47
1890.9
6 06 E
__
5 50E
--
CS.d
Wheatland
37 56
93 24
1881.6
8 39. 5 E
68 16.6
.2234
7 52 E
68 20
. 2208
Nl.di
Steelville
37 58
91 22
1905.6
6 08.8 E
68 07.4
.2244
6 08E
68 07
.2245
CS.6
Schell City
38 03
94 05
1879. 7
9 02. 7 E
68 20. 2
.2253
8 07 E
68 21
. 2227
NLdi
Cuba
38 04
91 21
1880.6
7 24. 8 E
68 18.8
.2248
6 30E
68 22
. 2222
NLdi
Linn Creek
38 04
92 47
1881.6
9 00. 3 E
68 14.5
■ 2256
8 06E
68 18
.2230
NLdi
Osceola
38 04
93 41
1903.6
7 40. 2 E
68 02.8
.2230
7 44E
68 05
.2227
CS.4
DeSoto
38 07
90 35
1880.6
7 46. 9 E
68 45- 4
.2203
6 48E
68 47
. 2181
NLdi
Lawson farm
38 II
92 II
1881.6
6 53.9 E
68 20.6
.2266
6 ooE
68 24
. 2240
NLdi
Vienna
38 12
91 54
1881.5
r 14. 9 E
68 39. 6
.2205
6 20E
68 43
.2179
NLdi
Tuscumbia
38 12
92 30
1881.6
8 30. 4 E
68 08. 5
•2253
7 36 E
68 12
. 2227
NLdi
Warsaw
38 14
93 23
1881.6
8 51.2 E
__
8 02 E
_.
Nl.d
Dry Fork
38 17
91 35
1881.5
7 04. 7 E
._
6 loE
__ --
NLd
Soap Creek
38 17
92 50
1881.6
8 20. 7 E
7 27E
_ _ _ _
Nl.d
Canaan
38 19
91 32
1881.5
7 16. 6 E
68 47. 3
. 2208
6 22E
68 50
.2182
NLdi
Clinton
38 22
93 46
1903.6
7 25.4 E
68 10.
.2230
7 30E
68 12
. 2227
CS.4
Lincoln
38 23
93 21
1881.6
9 18. 6 E
68 22.6
.2241
8 30E
68 26
.2215
NLdi
Roedersville
38 24
91 ID
1881.5
6 55. 7 E
69 00.5
. 2207
6 02 E
69 04
.2181
NLdi
Wulfert farm
38 24
91 16
1881.5
7 04. 1 E
. 2206
6 loE
.2180
NLdi
Union
38 25
90 59
1881.5
6 35. 7 E
68 56.' 2
. 2192
5 42E
68 59
.2169
NLdi
Versailles
38 25
92 53
1881.6
8 19. 8 E
68 45. 2
. 2206
7 26E
68 48
. 2180
NLdi
Pacific
38 28
90 44
1881.5
6 54. I E
i 5 59E
._
NLd
Do.
38 28
90 44
1880.6
7 02. 1 E
69 02.3
.2172
I 6 03 E
6^ 04
.2150
NLdi
F. Kaldeweihers
38 28
91 41
1882. 5
7 44. 3 E
6 55E
NLd
Linn
38 28
91 50
1882.5
7 36. 9 E
6 47E
_.
NLd
Versailles, N. base
38 30
92 48
1897.4
635 E
6 38E
_
1 CS.d
Washington
38 31
90 59
1879.6
6 24. 7 E
69 07.6
.2179
5 22 E
69 08
.2157
NLdi
Do.
38 31
90 59
1881.5
6 19. I E
_
5 25E
_ _ _ _
: NLd
Windsor
38 32
93 33
1881.6
8 43- 5 E
68 26.2
. 2218 ;
7 55E
68 29
. 2191
, NLdi
Goebels Station
38 34
91 06
1882.5
7 37.9 E
■
6 48E
NLd
Jefferson City
38 35
92 09
1879.6
8 38. 8 E
68 55- 7
.2183
736E
68 56
.2156
NLdi
Do.
38 35
92 09
1881.6
8 27. 2 E
7 33E
- _ - _
NLd
Kirkwood
38 36
90 24
1882.5
6 24. 5 E
__
5 31E
-_
NLd
Newport
38 36
91 06
1882.5
6 59.0 E
6 loE
_- __
_
NLd
Fred Bruhn's
38 37
91 29
1882.5
6 52.4 E
6 03E
__
NLd
St. Louis
38 38
90 16
1900.9
5 04. 4 E
69 24.4
. 2128
5 05E
69 30
. 2119
CS.d2
Ten-mile House
38 38
90 23
1881.5
6 47. 5 E
' 5 51E
NLd
♦ Local disturbance.
44 MAGNETIC TABLES AND CHARTS FOR 1905.
Table I. — Observed magnetic elements and the values reduced to January i, 1903 — Continued.
MISSOURI— Continued
station
Centertown
California
Harrisonville
Near Clayton
St. Charles, rock road
Ruck's place
Zimmerman's place
Pattonsville
Marion
Hermann
Sedalia
Do.
Dardenne
Healds
Little Auxvasse Cr.
Holden
Opposite St. Charles
St. Charles
Warrenton
. Do.
Normal
Florissant
O'Fallon
Wright City
Prairie Home
Providence
Danville
Clarks Fork
Swope's
Danville
Sweet Springs
Columbia
Do.
Loomis's farm
McCredie
Stephen's store
Montgomery
Hemdon
Clark's farm
Arrow Rock
Kansas City
Do.
Marshall
Mexico
Do.
Fayette
Lexington
Do.
Centralia
Glasgow
Bowling Green
Carrollton
LongBrch.of SaltR.
Do.
Moberly
Louisiana
Winkler's
Plattsburg
Wolford's
Smith's
Kingston
Hannibal
Shelbyville
Macon
Do.
St. Joseph
Laclede
Chill cothe
Lati-
Longi-
tude
tude
Date
N.
W.ofGr.
f
/
38 38
92 25
1881.6
38 39
92 34
1881.6
38 39
94 18
1900.9
38 41
90 19
1881.5
38 41
90 21
1882.6
38 41
91 20
1882.5
38 41
93 34
1881.6
38 42
90 29
1881.7
38 42
92 25
1881.7
38 42
91 26
1906.4
38 42
93 15
1879. 6
38 43
93 14
1900.9
38 43
90 42
1881.7
38 43
90 40
1882.6
38 43
92 01
1882.5
38 43
94*03
1879. 6
38 44
90 31
1881.7
38 45
90 30
1878. 5
38 46
91 08
1881.7
3846
91 09
1882.6
38 46
93 44
1906.5
38 47
90 17
1881.7
38 47
90 43
1880. 8
38 47
91 00
1878. 5
3848
92 39
i88i.6
38 49
92 28
1881.7
38 51
91 32
1881.7
38 51
92 40
1881.6
38 52
93 35
1881.6
38 55
91 32-
1881.7
38 55
93 29
1881.6
38 56
92 18
1881.7
38 56
92 20
1878. 5
38 57
91 47
1881.7
38 58
91 55
1881.7
38 58
92 05
1882. 5
39 00
91 30
1882. 6
39 00
93 21
1881.6
39 02
92 55
1881.6
39 06
93 00
1881.6
39 06
94 33
1900.8
39 07
94 38
1879. 6
39 08
93 17
1881.6
39 10
91 52
1903- 6
39 II
91 52
1878. 5
39 10
92 41
1903.6
39 12
93 52
1903.5
39 12
93 53
1879. 6
39 13
92 08
1882.5
39 13
92 50
1879. 6
39 21
91 II
1903.6
39 21
93 30
1879.6
39 22
91 59
1882.6
39 24
92 ID
1882. 5
39 26
92 26
1882.5
39 28
91 07
1878.6
39 35
92 GO
1882.6
39 35
94 26
1903. 5
39 38
93 45
1882. 6
39 39
94 II
1882. 6
39 41
94 04
1882.6
39 44
91 24
1878.6
39 44
92 04
1882.6
39 45
92 27
1900. 8
39 46
92 30
1878.6
39 46
94 49
1879. 6
39 47
93 17
1882.5
39 48
93 33
1903.5
Observed
Deci'n
7 37. 9 E
7 44.0 E
7 42- 6 E
6 03. 7 E
6 08.3 E
7 51. 1 E
9 i5»2 E
5 53.9 E
7 39. 3 E
6 30. 4 E
8 45. 5 E
7 35- 3 E
6 32.6 E
6 46. 4 E
7 55.4 E
8 56. o E
7 19-4 E
6 44. 3 E
6 33. 8 E
7 40. 1 E
6 35.0 E
6 45. 4 E
8 13. 6 E
7 37.7 E
7 38. 8 E
7 47- 7 E
7 28. 9 E
8 37 2 E
7 47. 7 E
9 24. o E
7 24. I E
7 43. 6 E
7 46. 4 E
7 50. 6 E
7 36. 7 E
7 07. 1 E
8 55- 2 E
7 54. I E
7 54- o E
8 58. 2 E
10 07. 6 E
8 32.4 E
6 32.5 E
7 38. 6 E
7 22.9 E
7 37. oE
8 55.4 E
7 57. 1 E
8 21.3 E
5 50. o E
8 30. o E
7 59. 8 E
8 06.5 E
7 39. 6 E
7 07. 2 E
7 44-5 E
8 41. I E
8 40. o E
9 36. 5 E
9 13.3 E
7 08. 3 E
7 47. oE
6 59. o E
8 06. 9 E
8 53-3 E
8 10. 7 E
7 II. 4E
Incl'n H. Int.
68 46. 7
68 33.9
68 13.2
69 39.6
68 48. I
69 19.6
68 49- 7
68 43. 9
69 02. 7
68 29.3
70 08.0
69 29.9
69 10.4
68 18.7
69 II. 2
69 do. 3
69 15.9
68 57.4
69 19. I
69 05.0
69 07. I
68 58. 6
69 34- o
69 27.0
69 27. 6
69 52.1
16. 2
13.7
69
69
69 57-4
69 45.4
69 29.0
69 50. 2
69 30. I
70 14.3
70 01. 9
70 07. 6
69 43.3
70 14. I
c. g. s.
. 2182
. 2214
.2117
. 2272
. 2122
.2185 I
.2130 I
. 2214
. 2207
.2189
2230
2076 !
2069
2161
2240
2120
2149
2124
2179 i
2173
2187
2149
2170
2178
2141
2184
2200
2144
2144
2175
2106
2150
2168
2105
2100
2153
.2105
.2125
. 2082
. 2078
. 2080
.2143
. 2071
Reduced to 1905.0
Deci'n Incl'n H. Int.
6 44E
6 50E
7 51E
5 06E
5 16E
7 01 E
8 26E
4 58E
6 46E
6 28E
7 48 E
7 43 E
5 37E
5 54E
7 06E
7 58 E
6 23E
5 51 E
5 55E
7 38 E
5 38 E
5 45E
7 06E
6 44E
6 46E
6 55E
6 36E
7 48 E
6 55E
8 35 E
6 31 E
6 36E
6 54E
6 58E
6 47E
6 18E
8 06E
7 ooE
7 01 E
9 06E
9 loE
7 42 E
635E
6 33E
7 26E
40 E
52 E
08 E
19 E
50 E
29 E
10 E
' '7E
6 50E
6 ooE
6 56E
8 46E
7 52 E
8 49B
8 26E
6 ooE
6 56E
7 04 E
6 57E
7 54E
7 22 E
7 15E
68
50
68
40
68
i6
69
43
68
51
69
18
68
52
68
50
69
06
68
30
70
08
69
28
69
13
68 17
69
II
69
03
69
19
69
00
69
19
69
08
69
13
69
00
69
37
69
29
69
28
69
54
69
18
69
14
69 58
69
47
69
30
69 48
69 32
70 14
70 06
70 08
69 44
c. g. s.
.2156
.2205
.2094
2246
2100
2159
2132
2188
2197
2167
2204
2050
2047
2139
2242
2098
2127
2102
2153
2147
2161
2123
2144
2152
2115
2174
2173
2118
2140
2149
2102
2147
2146
2079
2097
2127
.2083
2056
2068
2054
2113
Source
70 16 !. 2066
NI.d
Nl.di
CS.d2
NA.di
NI.d
NI.d
Nl.di
Nl.di
Nl.di
CS.6.
Nl.di
CS.d2
Nl.di
NI.d
NI.d
Nl.di
Nl.di
Nl.di
Nl.di
NI.d
CS.6
NI.d
NI.d
Nl.di
NI.d
Nl.di
NI.d
Nl.di
NI.d
NI.d
Nl.di
NI.d
NI.di
NI.d
Nl.di
NI.d
NI.d
NI.d
NI.d
Nl.di
CS.d2
Nl.di
Nl.di
CS.4
Nl.di
CS.4
CS.4
Nl.di
NI.d
Nl.di
CS.4
Nl.di
NI.d
NI.d
NI.d
Nl.di
NI.d
CS.4
NI.d
NI.d
NI.d
Nl.di
NI.d
CS.d2
NLdi
Nl.di
Nl.di
CS.4
MAGNETIC ELEMENTS IN THE UNITED STATES. 45
Table I. — Observed magnetic elements and the values reduced to January i, 1905 — Continued.
MISSOURI— Continued
SUtion
Palmyra
Isaac Lewis's
Maysville
Linneus
Harris
Yellow Ck.,W. bmch.
Gallatin
Mercyville
La Plata
Johnson's
Trenton
Michael's
Honan's
Canton
Shicklerville
Edina
Kirksville
Do.
Milan
Amick's
Albany
Do.
Bethany
Sec. i5.T.63N.,R
30 W.
Banke's
Maryville
Princeton
Memphis
Ward's
Williams's
Union ville
Lancaster
Lati- Lonsi- j
tude tude I
N. W.ofGr.
Date
39 48
39 48
39 48
39 51
39 53
39 54
39 55
39 57
40 00
40 01
40 03
40 04
40 08
40 09
40 09
40 10
40 12
40 12
40 12
40 13
40 14
40 15
'40 16
40 16
40 19
40 21
40 24
40 27
40 27
40 27
40 29
40 31
91 32
92 37
94 24
93 13
92 22
93 07
93 59
92 42
92 29
94 23
93 39
93 53
93 56
91 31
92 53
92 10
92 37
92 37
93 II
93 38
94 23
94 21
94 03
94 17
93 07
94 51
93 39
92 13
93 10
93 21
93 03
92 31
1900. 8
1882.5
1882.6
1882.5
1882.6
1882.5
1903- 5
1882.5
1882.6
1882.6
1882.6
1882.6
1882.6
1878.6
1882.6
1903-6
1878.6
1882.6
1882.6
1882.6
1903- 5
1882.6 ,
1882.6 !|
1882.6 I
1882.6 I'
1879.6 !
1882.6
1878.6 '
1882.6
1882.6 I
1882.6
1900. 8 '!
!|
Observed
Decl'n
Incl'n H. Int.
21.9 E
58. 7 H
18. 3 E
55- 9 E
36. 9 E
16. I E
. 54. 2 E
8 17.0 E
8 09. 2 E
9 33- 2 E
8 03. 9 E
8 46. 3 E
8 48. o E
7 19- 5 E
8 52. oE
6 55. 3 E
8 29. I E
8 16.5 E
8 17.9 E
8 14.0 E
7 02. I E
8 26. o E
8 43. 5 E
8 33. 2 E
8 37-8 E
II 139 E
8 47.4 E
7 47- 7 E
8 29. I E
8 38. 8 E
8 00. 7 E
7 28. oE
70 08. 4
70 27. 8
70 37-9
70 40. 6
70 05. 8
70 26.8
70 29. 6
c. g. s.
. 2072
69 53.3 -2113
2044
2039
2032
70 18. 2 . 2073
2088
2060
2053
Reduced to 1905.0
Incl'n H. Int.
6 24E
7 08 E
8 31 E
7 06 E
6 46 E
7 24 E
7 58 E
7 24 E
7 17 E
8 46 E
7 13 E
7 56 E
7 58 E
6 08 E
8 00 E
6 58E
7 19 E
7 23 E
7 26E
7 24 E
7 06 E
7 39 E
7 54 E
7 44E
7
46 E
10
12 K
7
58 E
6
38 E
7
38 E
7
47 H
7
08 E
7
32 H
o /
70 13
69 55
70 25
70 39
70 38
70 20
c. g. s.
. 2062
2109
. 2023
.2035
. 2009
. 2069
70 08 . 2062
70 24
70 34
2037
2044
Source
CS.d2
Nl.d
Nl.d
Nl.d
Nl.d
Nl.d
CS.4
Nl.d
Nl.d
Nl.d
Nl.d
Nl.d
Nl.d
Nl.di
Nl.d
CS.4
Nl.di
Nl.d
Nl.d
Nl.d
CS.4
Nl.d
Nl.d
Nl.d
Nl.d
Nl.di
Nl.d
Nl.di
Nl.d
Nl.d
Nl.d
CS.d2
MONTANA
Red Lodge
Dillon
Bimey
Crow Agency
Do.
Wisdom
Fort Ellis
Bozeman
Fort Custer"
Divide, A
Divide
Billings
Big Timber
Anaconda
Forsyth
Townsend
Miles City
Deer Lodge
StevensvUle
Helena
Do.
Missoula
Neihart
Ovando
Lewistown
Glendive
Glendive (new)
Superior
Cascade
/
/
45 12
109 16
1906.
45 13
112 39
1905-
45 21
106 31
1906.
45 36
107 27
1905-
45 36
107 27
1905-
45 38
113 27
1906.
45 40
no 58
1882.
45 40
III 02
1896.
45 45
107 48
1882.
45 45
112 45
1906.
45 45
112 46
1906.
45 47
108 33
1906.
45 49
109 59
1906.
46 08
112 59
1905.
46 15
106 39
1896.
46 19
III 31
1896.
46 24
105 53
1896.
46 24
112 45
1906.
46 30
114 05
1905.
46 37
112 02
1903-
46 37
112 02
1905.
46 52
114 00
1906.
4656
no 43
1906.
47 02
113 08
1906.
47 04
109 26.
1905-
47 06
104 42
1906.
47 07
104 42
1906.
47 12
114 54
1905-
47 16
III 42
1896.
18 30. 2 E
20 14. 8 E
17 35-3 E
x8 13.5 E
18 14.4 E
20 46. 2 E
19 35- oE
18 39. 6 E
17 32.7 E
18 42.0 E
18 02.5 E
20 03. 2 E
21 03. 1 E
17 46.4 E
19 32.0 E
16 53- 3 E
20 36. 2 E
20 49. 9 E
19 44. 6 E
19 49. 2 E
21 22. o E
19 49- 4 E
21 26. o E
19 53- 2 E
17 05. 8 E
17 10. I E
21 51.8 E
19 29. 8 E
72 10. o
71 II. 6
72 18. 2
72 21. I
72 20. 2
71 02.9
71 43-4
71 39.2
72 23.4
71 37-7
71 25.0
72 16.8
72 07. I
71 36.6
73 04- 4
72 09.0
73 35- o
71 59-9
71 43- I
72 11.5
72 08.4
71 56.2
72 19- 3
72 06. 6
73 09.7
74 19- 8
74 19- 5
71 56.3
72 37- o
c. g. s.
.1872
1950
.1866
. 1861
.1855
1952
1959
,1909
, 1921
, 1918
1951
, 1870
, 1872
1909
1803
1865
1757
1874
.1894
.1855
■1855
1873
.1865
. i860
. 1780
. 1687
.1683
.1871
1835
18 25 E
20 12 E
17 31 E
18 12 E
18 13 E
20 41 E
19 45 E
19 00 E
I7'.2"7"E
18 37 E
17 57 E
19 58 E
21 00 E
18 04 E
19 51 E
17 09E
20 31 E
20 48 E
19 48 E
19 47 E
21 17 E
19 44E
21 21 E
19 51 E
17 02 E
17 06 E
21 50 E
19 50 E
72 09
71 II
72 17
72 21
•72 20
71 02
71 48
71 42
72 28
71 37
71 24
72 16
72 06
71 36
73 06
72 13
73 37
71 59
71 43
72 12
72 09
71 56
72 19
72 06
73 09
74 19
74 19
71 56
72 40
c. g. s.
874
951
867
863
857
954
947
905
912
919
953
872
873
909
801
861
755
876
894
854
855
875
866
862
780
689
684
872
833
CS.7
CS.6
CS.7
CS.6
CS.6
CS.7
CS.di
CS.di
CS.i
CS.7
CS.7
CS.7
CS.7
CS.6
CS.di
CS.dr
CS.di
CS.7
CS.6
CS.4
CS.6
CS.7
CS.7
CS.7
CS.6
CS.7
CS.7
CS.6
CS.di
46
MAGNETIC TABLES AND CHARTS FOR 1905.
Table I. — Observed magnetic elements and the values reduced to January j, igo^ — Continued.
MONTANA— Continued
Observed
Reduced to zoo<
.0
Station
Lati-
tude
N.
Longi-
W.ofGr.
Date
Ded'n
Incl'n
H. Int.
Decl'n
Incl'n 1
H. Int.
Source
Tokna
/
47 28
/
104 22
1906 5
/
17 20. 1 E
/
74 4X.O
c. g. s.
• X653
/
17 x6E
f .
74 40 1
cg.s.
•1654
CS.7
Great Falls
47 28
III 16
1906
6
21 25.7 E
72 52.2
. 1803
21 21 E
72 52
. 1804
CS.7
Ronan
47 32
114 07
1906
7
22 19.6 E
72 23.0
•1839
22 14 E
72 23 !
. 1840
CS.7
Judith
47 44
109 39
1906
5
20 24. 1 E
73 41.3
•1738
20 20 E
73 4x 1
•X739
CS.7
Chouteau
47 48
112 10
1906
6
2i 05. 4 E
73 "7
1764
21 00 E
73 IX 1
.1765
CS.7
Fort Benton
47 49
no 41
1906
5
21 03. E
73 44. 8
.1734
' 20 58 E
73 44
•X735
CS.7
Zortman
47 55
108 30
1906
5
20 00. 4 E
74 09.5
. 1691
19 56 E
74 09 1
.1692
CS.7
Poplar
48 06
105 12
1906
5
18 14.8 E
75 170
.1588
1 i8 II E
75 x6 1
■X589
CS.7
Kalispell
48 10
114 17
1906
6
22 50. 3 E
72 48. 8
. 1802
22 45 E
72 48 ,
.1803
CS.7
Big Sandy
48 II
I ID 07
1906
5
21 34-2 E
73 46.0
.1721
1 21 29 E
73 45 ,
. 1722
Sg-7
Glasgow
48 12
106 37
1903
8
19 09. 6 E
74 51.4
. 1632
, X9 X4 E
74 52 1
.1631
CS.4
48 12
106 38
1906
5
•19 25. 3 E
74 50.0
. 1629
19 21 E
.74 50
.1630
CS.6
Malta
48 21
107 52
1906
5
20 13.0 E
74 36.4
•X645
20 09 E
7436
. 1646
CS.6
South Crossing,
48 22
115 21
1861
5
22 16 E
72 48. I
. 1832
22 36 E
72 56 1
. 1813
CS.dit
Kootenay R.
Jennings
Shelby
48 22
115 22
1906
6
22 17. 2 E
72 43. 2
. 1801
22 12 E
72 43
. 1802
CS.7
48 30
m 53
1906
6
1 22 04. 8 E
73 53. 6
. 1702
22 00 E
73 53 '
.1704
CS.7
Harlem
48 32
108 47
1906
5
; 21 05.4 E
74 35-4
.1648
21 01 E
74 35 1
.1649
CS.6
Havre
48 33
109 42
1906
5
' 20 51.6 E
74 27.8
.1660
20 47 E
74 27
. 1661
CS.7
Browning
48 35
"3 03
1906
6
1 20 46. 4 E
73 16.8
.1781
20 41 E
73 x6
. 1782
CS.7.
Chinook
48 36
109 14
1903
8
1 19 21. 2 E
74 26. 8
.1671
19 26 E
74 27
. 1670
CS4.
Kootenay River
48 40
"5 17
1861
5
1 23 24 E
73 07. 2
. 1800
23 44E
73 16
. 1781
CS.dit
Avery
4856
108 36
1906
5
20 26. 5 E
74 50. 5
. 1624
20 22 E
74 50
• 1625
CS.7
Tobacco Plains
48 57
115 08
1861
6
-_ _ - _ _
73 22.9
• 1777
- _ _ _
73 32
■1758
CS.it
Camp Kootenay E.
48 59
115 12
1861
5
22 58 E
73 IX
.X775
23 18 E
73 20
.1756
1 CS.dit
Sweet Grass
49 00
III 58
1906
6
1 22 31. 1 E
73 57-
■ X699
22 26 E
73 56
. 1 701
1 CS.7
Camp Kishenehu
49 00
114 21
1861
5
22 58 E
73 46. 8
.1748
23 18 E
73 56
. 1728
CS.dit
Flathead River
49 00
114 27
1903
8
23 35.6 E
73 47. 7
.17x5
23 40 E
73 48
• 17x5
lS!l
Wigwam Creek
Phulips Ranch
49 00
"4 45
1901
7
23 19. 9 E
23 32 E
_ _ __
- _-_
CS.d
49 00
"5 03
1905
8
24 01. E
73 20.7
. X744
23 58 E
73 20
■ X744
; CS.6
Tobacco Plains
49 00
115 04
19OI
6
23 40. 2 E
23 52 E
' CS.d
Kootenay R. east
49 00
115 10
1901
8
23 38. 9 E
»_
23 51 E
_-. _.
1 CS.d
Gateway
49 00
115 10
1906
6
24 02. 2 E
73 16.4
.X754
23 57 E
73 x6
.1755
CS.7
Monument No. 1 1
49 00
"5 15
•1903
9
23 41- 8 E
73 20.4
•X753
23 46 E
73 21
•X752
, CS.4
Yahk River
49 00
"5 39
1905
8
1 23 36. 4 E
73 16.4
•X745
23 34 E
73 16
.1745
1 CS.6
1
NEBRASKA
/ /
/
/
c. g. s.
f
/
c. g. s.
Superior
40 02
98 02
1900.6
10 17. 6 E
69 10.4
. 2160
10
26 E
69 16
. 2150
CS.d2
Benkelman
40 04
loi 30
1902.9
12 34.2 E
68 33- 3
. 2201
12
39 E
68 36
.2196 ;
CS.3
Fairbury
40 08
97 XI
1902.8
10 23.6 E
69 26.8
. 2161
10
29 E
69 30
.2156 j
Sf-3,
Culbertson
40 X5
100 46
1902.9
12 15.7 E
69 04.4
. 2164
12
20 E
69 07
.2160 1
CS.3
Beatrice
40 17
96 48
1902. 8
10 14.5 E
69 58.5
.2087
10
20 E
70 01
.2082 1
CS.3
Indianola
40 16
100 22
1902.9
II 54- 6 E
69 10.7
. 2162
II
59 E
69 13
.2158
CS.3
Tecumseh
40 23
96 12
1902. 8
8 29. 7 F .
70 02.4
. 2071
8
35 E
70 05
. 2067 •
CS.3
Holdrege
40 28
99 20
1902.9
IX 47.5 E
69 23.3
.2133
II
5^S
69 26
.2128
£!-3
Hayes Center
40 32
100 58
1902.9
11 16.9 E
69 27.3
.2136
II
22 E
69 30
.2132
CS.3
Geneva
40 33
97 36
1902. 8
II 15.2 E
69 35. I
•2139
II
20 E
69 38
•2135
Si-3
Imperial
40 33
lOI 36
1902.9
12 52.4 E
69 10.8
. 2161
12
57 g
69 13
.2157
S?-^
Stockville
40 34
100 22
1902.9
12 07.8 E
69 34-7
. 2098
12
12 E
69 37
.2094
Sf-3
Hastings
Elwx)od
40 37
98 24
1902.8
10 16.8 E
70 00.0
.2089
10
22 E
70 03
.2085
CS.3
40 37
99 52
1902.9
12 26.4 E
69 39-4
.2096
12
3^S
69 42
. 2092
CS.3
Kearney
40 42
99 05
1902. 8
13 01.2 E
70 05.9
. 2070
13
06 E
70 08
.2066
S!-3
Shelton
40 47
98 44
1906.7
IX 41. 5 E
70 24.7
. 2072
1 II
38 E
70 23
. 2076
CS.7
Lincoln
40 49
96 42
1902. 8
10 10. E
70 27. I
.2051
1 *°
'5g
70 30
.2047
CS.3
York
40 52
97 34
1900.6
10 22.6 E
70 12.3
.2086
' 10
30 E
70 17
.2077
1 CS.d2
Grant
40 52
loi 41
1902.9
12 51.9 E 69 42.2
.2103
' 12
57 S
69 45
.2099
1 CS.3
Grand Island
40 55-
98 23
1872.8
13 13.5 E 70 15-5
.2091
II
56 E
70 22
. 2069
NA.di
Do.
40 55 1 98 18
1878. 7
12 51.7 E ' 70 X7-7
. 2106
1 X2
03 E
70 26
.2083
CS.diJ
Chappell
41 06 102 28
1900. 8
13 44. 7 E 1 69 23. I
.2130
13
5^5
69 27
. 2122
CS.d2
North Platte
41 08 |ioo 46
1902.9
II 54. 3 E , 69 39.9
.2109
' II
58 E
69 42
.2105
CS.3
Ogalalla
41 09
loi 42
1902.9
1 13 38. oE
69 54.0
.2083
I- 13
42 E
69 56
I. 2079 .
CS.3
t U. S. Northwest Boundary Commission; J. S. Harris, observer; revised results.
J Boundary Survey; R. W. Haig, obseri'er; Phil, trans. R. S., 1864; revised results.
J T. E. Thorpe, observer; Proc. R. S. No. 200, 1880.
MAGNETIC ELEMENTS IN THE UNITED STATES.
47
Table I. — Observed magnetic elements and the values reduced to Janiuiry i, 1905 — Continued.
NEBRASKA— Continued
Station
Sidney
St. Paul
Wahoo
KimbaU
Omaha
Broken Bow
Schuyler
Gandy
Hartman
Tyron
Harrisburg
Daily
Sees. 10, II, T 19,
R. 37
Bridgeport
Albion
Burwell
Gering
Bartlett
Brewster
Thedford
Hyannis
School section 36
Norfolk
Mullen
Alliance
Neligh
Hewitt
Spring Lake Ranch
Marshland
O'Neill
Keystone Ranch
Kennedy
Ainsworth
Newport
Harrison
Rushville
Spring View
Chadron
Valentine
Merriman
Lati-
tude
N.
41 09
41 12
41
41
41 23
41 26
41 28
41 29
41 34
41 34
41 36
41 38
41 40
41 41
41 46
41 49
41 52
41 56
41 59
41 59
42 00
42 02
42 02
42 06
42 08
42 15
42 26
42 26
42 28
42 28
42 31
42 33
42 36
42 41
42 43
42 49
42 51
42 52
42 55
Longi-
tude
W.ofGr.
103 00
98 27
96 38
103 38
95 58
99 36
97 04
100 27
102 21
100 58
103 45
98 39
loi 32
103 05
97 59
99 12
I103 40
98 33
99 50
100 31
loi 46
I 99 21
97 22
loi 00
102 51
I 98 02
,103 59
:io2 04
1 103 16
I 98 39
102 48
100 50
I 99 52
99 20
1 103 53 I
102 29
99 45
102 59
100 34
jioi 44
Date
I
900,
900.
902
900.
900
900,
900
900
900
900,
900
906.
900,
900,
900.
900,
900,
900.
900,
900,
900.
900,
896
900
900
900,
900,
900,
900,
906
900.
900
900.
900.
900.
900.
900.
906.
900.
900,
Observed
Ded'n
3 38. 3 E
69 31- 5
I 24. 6 E
70 28.6
9 06.4 E
70 56. 8
3 44.8 E
69. 30. 7
9 30- E
71 09.5
I 54- 8 E
70 06. 6
42. 2 E
71 01. 8
2 12.8 E
70 03.
3 28. 6 E
69 47-9
3 14.8 E
70 09.9
4 22. 1 E
69 52.3
I 42. 7 E
71 08.3
Incl'n
44. 6 E
22. 3 E
01. 7 E
52.5 E
20.5 E
17.5 E
18. 6 E
xo. 2 E
23. oE
510E
33. 3 E
2 50. 2 E
4 10. 3 E
1 15. 8 E
5 06.7 E
3 50- 5 E
4 13- 4 E
1 48.4 E
3 07.4 E
2 36. 9 E
52. 5 E
06. 1 E
47. 5 E
10.9 E
10.4 E
21. 8E
33. 7 E
15. 8 E
70 05. 7
69 50.6
70 40.9
70 41. 1
69 58.7
71 04.0
70 44.1
70 44.8
70 28.8
70 57- 5
71 06.8
70 38. 8
70 16.3
71 01..
70 33.
70 31
70 31.
71 20.
70 37
71 12.5
71 12.6
71 18.2
70 36. 9
70 52. 2
71 31.1
71 12.7
71 32.8
71 34-2
H. Int.
c. g. s.
2123
. 2106
. 2012
.2118
. 1982
2073
.1994
. 2090
. 2092
. 2076
2094
1985
.2073
.2086
. 2024
. 2022
. 2071
■1985
.2023
. 2024
. 2041
1999
. 1986
. 2030
.2052
. 2004
.2059
.2038
.2036
•1974
.2031
■1983
.1983
■1973
.2018
. 2002
•1953
•1975
.1944
•1952
Reduced to 1905.0
Decl'n
46 E
32 E
12 E
36 E
02 E
50 E
20 E
36 E
23 E
29 E
39 E
52 E
30 E
10 E
ooE
28 E
26 E
30 E
58 E.
41 E
18 E
24 E
14 E
58 E
21 E
45 E
14 E
44E
ooE
13 E
54 E
18 E
18 E
18 E
41 E
23 E
Ind'n H. Int.
69 35
O 33
59
69 35
1 14
O II
07
o 07
69 52
14
69 56
1 07
Q 10
69 54
o 45
c. g. s.
2114
2056
2008
2111
1974
2065
1986
2082
2084
2068
2087
1988
2066
2079
2016
2015
2063
1977
2016
2017
2033
1992
1972
2023
2045
1996
2052
2032
^030
1977
2025
1977
1977
1966
2012
1996
1947
1978
1938
1946
Source
CS.d2
CS.d2
ca3
CS.d2
CS.d2
CS.d2
CS.d2
CS.d2
CS.d2
CS.d2
CS.d2
CS.7
CS.d2
CS.d2
CS.d2
CS.d2
CS.d2
CS.d2
CS.d2
CS.d2
CS.d2
CS.d2
CS.di
CS.d2
CS.d2
CS.d2
CS.d2
CS.d2
CS.d2
CS.7
CS.d2
CS.d2
CS.d2
CS.d2
CS.d2
CS.d2
CS.d2
CS.7
CS.d2
CS.d2
NEVADA
Ti42. T,«, Von
Schmidt 35** E.
Lat. Pier
TjM* Ti38, Tj35, Ti35
Ti84
Tis3, Ti32, Tiao
Ti26» T,a4, T,22, T121
Ti20f Tii9, Tjij, Tnj5
T115, Tu4, Tiia, T112,
T
Miot TioB, Tjoe, T107
Las Vegas
Tio6» Tjoj, Tjos, T102
Tioif Tjoo, T90, T98
TjM, T|j7, Tqo, T95, T94
Rox
T92» T91, T90
Tgoi Tgg, Tgj, Tg^
TgSf Tgg, Tgo, T79, TTg
J"' i7^* J"* Jj** Jp
T72f T71, T70, Tqo, Tgg
Caliente
TbtJ* Tg?, Tao, T^g, T^
35 01
35 08
35 21
35 41
35 51
36 00
36 09
36 10
36 20
36 30
36 39
36 52
36 55
37 06
37 19
37 29
37 35
37 36
37 42
114 40
114 49
115 05
115 30
115 42
115 54
116 05
|ii5 II
■116 19
'116 33
116 45
114 42
117 06
117 20
117 38
117 51
118 00
"4 31
.118 09
1899. I
1899. I
1899. I
1899. 1
1899. 2
1^99. 2
1899. 2
1906.4
1899. 2
1899. 2
1895.8
1906. 4
1895-7 .
1895. 8
1895.6
1895.6
1895.6
1906.4
1895.5
14 12 E
14 42 E
H 37 E
14 56 E
15 03 E
15 06 E
15 13 E
15 33.0 E
15 10 E
15 23 E
15 40 E
16 14.4 E
16 10 E
16 08
16 20
16 19
16 29 _
16 58. 6 E
16 13 E
E
E
E
E
62 25.7
62 47.4
63 46. 7
c. g. s.
2547
2539
2470
14 28 E
14 58 E
14 54 E
15 13 E
15 20 E
15 23 E
15 28 E
15 29 E
15 25 E
15 38 E
16 03 E
16 10 E
16 35 E
16 33 E
16 45 E
16 44 E
16 54 E
16 54 E
16 38 E
62 26
62 46
I 63 46
c.g.s.
2549 I
2541
2472
CS.d
CS.d
CS.d
CS.d
CS.d
CS.d
CS.d
CS.6
CS.d
CS.d
CS.d
CS.6
CS.d
CS.d
CS.d
CS.d
CS.d
CS.6
CS.d
48
MAGNETIC TABLES AND CHARTS FOR 1905.
Table I. — Observed magnetic elements and the values reduced to January i, 1903 — Continued.
NEV AD A—Continued
Ob.served
Reduced to loos.o
.
Lati-
Longi-
1
station
tude
tude
Date
Source
N.
W. of Or.
Ded'n
Incl'n
H. Int.
Ded'n
Ind'n
H. Int.
/
/
. '
/
c. g. s.
/
t
c. g, s.
Tfl3, Ta2, Tgi, Tflo, T^q
37 49
118 19
1895.5
16 43 E
__
17 08E
CS.d
T58,Nev.-Cal.Bndry.
37 56
118 29
1894. 9
13 42 E
.
14 08 E
CS.d
Pioche
37 59
114 03
1883. 7
17 10.9 E
65 36
.2380
17 34 E
65 47
• 2349
CS.di
Tonopah
T4«, T4«, T«, Tao, T53
38 04
117 14
1902.7
16 43 E
16 51 E
CS.3
38 05
118 41
1894.9
16 24 E
__ __
"II 1
16 49 E
-_
CS.d
TjQ, T40, T45, T44, T45
38 15
118 55
1894- 8
15 57 E
_- '__
16 23 E
CS.d
White Pine
38 19
115 30
1881.9
16 04. 1 E
64 04. I
.2485
16 28 E
64 12
• 2449
CS.di
Sodaville
38 20
118 06
1905-4
17 21.7 E
63 42.9
•2463
17 20 E
63 43
.2464
' CS.5
T3^T34, Tgs, Tae, Tgj,
Hawthorne
38 24
119 08
1894. 8
16 30 E
16 56 E
CS.d
38 32
118 38
1905- 4
17 33-9 E
63 42. I
.2449
17 33 E
63 42
• 2450
, CS.5
T28» T29, T30, T31, T32
38 34
119 22
1894. 8
16 33 E
17 ooE
CS.d
T22, Ta, Ta4, T25, T37
38 41
"9 33
1894.8
17 15 E
_
17 43 E
-- _ _
, CS.d
T16, Tw, Ti7, Tjg, T19,
Tg, T9, Tjo, Tji, T12,
Ti3» Tj4
Hot Spring
38 48
119 42
1894. 7
16 20 E
16 49 E
—
CS.d
38 51
119 47
1894. 7
1653 E
17 23 E
-- _.
—
CS.d
38 55
118 12
1902.8
17 31 E
17 39 E
CS.3
Initial, 1894, Ti, Tg,
38 56
119 55
1894. 6
16 28 E
__ _ - _ -
16 56 E
___-
CS.d
T4, T5, Tg, and Ty
Esmeralda Mill
38 58
118 14
1902.8
17 18 E
1
17 26 E
-_
CS.3
Wheeler Peak
38 59
114 19
1882.9
16 30. 4 E
64 59- 9
• 2430 ,
16 51 E
65 07
. 2401
CS.di
Yerington
38 59
119 10
1905.4
17 21.4 E
64 05. I
.2441
17 20 E
64 05
.2442
CS.5
Tres Pinos
39 00
114 14
1882.9
16 22.7 E
65 00.8
.2431
16 45 E
65 08
• 2403
CS.di
Genoa
39 00
119 50
1889. 6
16 44. 3 E
64 04. 4
.2406 ;
17 18 E
64 07
• 2387
CS.di
Lehman's Ranch
39 01
114 08
1882.9
16 16.5 E
65 02.4
• 2438 '
16 40 E
65 09
. 2410
CS.di
Big Bend, Walker R.
39 09
118 56
1859. 6
. 16 56 E
63 37
17 32 E
63 32
CS.di t
Carson City
Carson Lake
39 10
"9 45
1905.3
17 01. 7 E
63 45- I
.2472
17 01 E
63 45
• 2473
CS.5
39 24
118 39
1859.6
17 II E
64 02
j
17 47 E
63 56
CS.di t
Austin
39 29
117 04
1881.4
16 57.0 E
64 49.0
.2422
17 21 E
64 56
.2392
CS.di
Reno
39 30
119 49
1881.3
1 17 48. 7 E
64 14. 1
.2452
18 22 E
64 20
.2422
CS.di
Eureka
39 31
115 58
1881.4
1 16 36. 6 E
65 08.4
.2406
17 01 E
65 14
.2376
CS.di
Verdi
39 31
"9 59
1889. 5
17 26.7 E
64 23. I
.2422
17 58 E
64 30
.2401
CS.di
Diamond Peak
39 35
"5 49
1881.7
1 16 49. 7 E
65 12.3
. 2402
17 12 E
65 18
.2372
CS.di
Mt. Callahan
39 42
116 57
1881.5
17 04.0 E
65 07.4
.2407
17 25 E
65 14
.2377
CS.di
Kobah Valley
Antelope Valley
39 44
116 10
1858.9
16 44 E
64 56
16 51 E
64 50
CS.di t
CS.di •
39 47
114 12
1859.5
16 47 E
65 16
16 46 E
65 09
nil
Hot Springs
39 47
118 56
1881.3
17 26.6 E
64 46. 5
.2430
18 ooE
64 54
. 2400
CS.di
Cho-Keep Pass
39 54
115 45
1858.9
17 02 E
65 19
17 05 E
65 19
CS.di t
Huntingdon Spring
40 01
"5 19
1859.5
18 06 E
65 25
__-_
18 09E
65 25
CS.di-
Mineral Hill
40 10
116 12
1881.4
17 03.2 E
65 40. 7
.2375
17 28 E
65 48
• 2345
CS.di
Rye Patch
40 26
118 18
1881.3
17 49.7 E
65 23.9
.2379
18 23 E
65 31
.2349
CS.di
Battle Mountain
40 40
116 50
1881.3
17 34. 8 E
65 51.2
• 2359
18 ooE
65 58
.2329
CS.di
Elko
40 51
115 46
1905.4
18 05.4 E
66 22.4
.2304
' 18 04 E
66 22 . 2304
CS.5
Winneraucca
40 59
117 44
1906. 7
18 47.8 E
66 03. 9
.2313
i 18 42 E
66 03 I.2315
CS.7
Wells Station
41 07
114 56
1881.3
17 21.8 E
66 49- 9
.2300
; 17 40E
66 57 .2270
CS.di
Tecoma
41 20
114 06
1881.3
17 28.2 E
67 08.0
. 2281 »
. 17 45 E
67 15 .2251
CS.di
Amos
41 23
117 51
1906.7
18 34. 4 E
66 37.0
.2279
1 18 29E
66 36
.2281
CS.7
NEW HAMPSHIRE
Troy
Monadnock
Chesterfield
Unkonoonuc
Patuccawa
Newport
Gunstock
Hanover
Plymouth
Glen House
Littleton
Gorham
Colebrook
f
r
1
42 50
72
II
1861.6
42 52
72
06
1861.6
42 54
72
26
1890.7
42 59
71
35
1848.8 1
43 07
71
12
1849.6 !
43 22
72
10
1905.7
43 31
71
22
1860.5
43 43
72
17
1905.7
43 46
71
42
1905.7
44 16
71
14
1856.6
44 19
71
48
1873.8
44 22
71
15
1873.7
44 53
71
31
1905.7
t
9 03. 3 w
74 45. 7
__ —
74 44.4
II 12. 7 w
73 54. 7
9 04. 1 W
75 08. 7
10 42.8 W
76 49. 5
13 23. 4 W
74 00.8
10 54. 1 w
75 43.6
12 48.4 W^
74 22.7
13 32.0 w
74 16.5
._
75 56
12 35.1 W
75 39. I
13 47.0 w
75 35-6
15 59. 7 W
75 15-2
c. g. s.
. 1650 I
. 1677 I
. 1603
. 1426
. 1676 1
. 1568 ,
. 1639 '
. 1641 I
. 1558 ,
• 1572 I
• 1563 1
/
1
/
11 23 w
73 33
__ __
73 29
12 03 W
73 35
12 11 W^
73 46
I351W
75 27
13 21 W
74 01
13 10 w
74 31
12 46 W
74 23
13 30 w
74 17
__ __
74 36
14 09 w
74 48
15 22 W
74 45
15 57 W
75 15
c. g. s.
.1721
.1695
. 1696
. 1520
.1675
.1657
.1638
. 1640
. 1607
. 1623
. 1563
:, CS.di
1' CS.i
li CS.di
' CS.di
11 CS.di
1 1 CS.6
;i CS.di
11 CS.6
1 1 CS.6
' AA.1
1 NA.di
I; NA.di
, CS.6
t J. H. Simpson, observer; J. B. Stone's Mag. Var., New York, 1878.
MAGNETIC ELEMENTS IN THE UNITED STATES. 49
Table I. — Observed magnetic elements and the values redticed to January i, 190$ — Continued.
NEW JERSEY
Reduced to lOo
;.o
Lati-
Longi-
station
tude
tude
Date
N.
W.ofGr.
Ded'n
Incl'n
H. Int.
Decl'n
Incl'n
H. Int.
Source
Cape May Point
/
38 56
/
74 58
1903. 6
/
6 27.6 W
/
70 32. I
c.g.s..
•1979
/
6 32 W
/
70 32
e.g. 5
.1976
CS.4
Townbank
38 59
74 58
1846
5
2 59- oW
71 23.6
. 1968
6 22 W
70 25
. 1981
CS.di
Sea Isle City
39 10
74 41
1903
6
6 515 W
70 36. 5
.1978
6 56 W
70 36
•1975
CS.4
Egg Island L. H.
39 II
75 08
1903
5
6 20. W
70 46. 4
•1955
6 25 W
70 46
•1952
CS.4
Port Norris
39 15
75 oi
1903
5
6 35.0 W
70 46.0
• 1957
6 40 W
70 46
•1954
CS.4
Atlantic City
39 22
74 25
1903
6
7 22.8 W
70 45.3
• 1958 1
7 28 W
70 45
.1955
Si-4
Bridgeton
39 25
75 16
1903
5
6 29. 6 W
70 38. I
. 1981 1
6 35 W
70 38
.1978
CS.4
Pine Mount
39 25
75 20
1846
5
3 14- 2 W
71 414
• 1954
6 36 W
70 42
• 1967
CS.di
Hawkins
39 26
75 17
1846
5
2 58. 8 W
71 42.6
. 1948
6 21 W
70 46
. 1961
CS.di
Mays Landing
Old Inlet, Tucker's I.
39 27
74 44
1903
6
7 00. 4 W
71 05.5
. 1941 .
7 06W
71 05
• 1939
CS.4
39 31
74 17
1846
9
4 27. 8 W
7 50W
CS.d
Long Beach
39 32
74 15
1903
6
7 53.0 W
71 01.3
.1937
7 58 W
71 01
•1935
CS.4
Salem
39 34
75 28
1903
7
6 48. 3 W
70 52.4
• 1952
6 52 W
70 52
■ 1950
CS.4
Tuckerton
39 36
74 20
1846
72 12.3
•1873
_ _-
71 14
.1885
CS.i
Church Landing
39 41
75 31
1846
4
5 49. I W
71 22.0
.1988
9 14W
70 23
. 2001
CS.di
Baraegat L. H.
39 46
74 06
1903
6
7 58.8 W
71 09.1
• 1924
804W
71 09
. 1922
CS.4
Chew
39 48
75 10
1846
5
3 45.2 W
72 14.4
•1893
7 12 w
71 15
. 1906
CS.di
Chatsworth
39 49
74 32
1903
6
7 40. 6 W
71 14.9
. 1916
7 46 W
71 15
• 1913
CS.4
Mount Royal
39 49
75 12
1903
5
7 12.2 W
71 15.4
. 1917
7 18W
71 15
•I915
CS.4
Camden
39 55
75 05
1903
5
7 08. 6 W
71 07.4
.1927
7 14 W
71 07
•1925
CS.4
Toms River
39 57
74 12
1903
6
8 03. 6 W
71 20. I
. 1908
8 08W
71 20
. 1906
CS.4
Mount Holly
Burlington Is.
40 00
74 48
1903
6
, 7 36. 8 W
71 15.0
.1924
742W
71 15
. 1922
CS.4
40 05
74 52
1902
7
! 7 44.0 W
71 16.6
. 1931
7 51 W
71 16
.1927
CS.3
White Hill
40 08
74 44
1846
4
4 25.9 W
72 06. 2
. 1912
7 50W
71 07
.1925
CS.di
Trenton
40 14
74 48
1903
6
8 00. 6 W
71 23.4
. 1921
8 06W
71 23
. 1918
CS.4
Freehold
40 15
74 17
1903
7
8 27.6 W
71 22.3
.1907
8 32W
71 22
.1905
CS.4
Princeton College
40 21
74 40
1844
4
72 40. 2
. 1852
_ --
71 45
•1857
CS.I
Mount Rose
40 22
74 43
1903
7
8 36." 7 W
71 45-
. 1900
8 42 W
71 45
.1898
CS.4
Do.
40 22
74 43
1903
7
8 05.0 W
8 loW
CS.4
Princeton, Rocky H.
40 23
74 39
1844
4
72 35.0
. 1867
__
71 40
.1874
CS.I
Mount Mitchell
40 24
74 00
1844
5 39- 4 W
__ __
9 08W
CS.d
Sandy Hook
40 28
74 00
1903
7
8 52-9W
71 413
. 1886
8 58 W
71 41-
.^884
CS.4
New Brunswick
40 30
74 27
1903
7
8 17. 5 W
71 49.0
.1876
8 22 W
71 49
■1874
, CS.4
Flemingtou
40 30
74 52
1904
4
8 14. 2 W
71 41.
. 1891
8 16 W
71 41
. 1890
CS.4
Perth Amboy
40 32
74 17
1903
7
8 57-5 W
71 47-2
. 1884
9 02 W
71 47
.1882
CS.4
Somerville
40 34
74 36
1904
4
9 07. 7 W
71 43.9
.1889
9 10 W
71 44
.1888
CS.4
Elizabeth
40 40
74 13
1904
5
8 59.6 W
71 50.8
. 1871
9 01 W
71 50
. 1870
CS.4
Snake Hill
40 43
74 06
1844
3
72 45.4
_ _-
71 40
CS.I
Bergen Neck
40 46
74 03
1840
5
5 53 W
937W
CS.d
Newark
40 46
74 II
1904
5
8 59- I W
72 06. 2 •
. 1869
9 01 w
72 06
. 1868
CS.4
Morristown
40 48
74 27
1904
5
, 9 38.9 W
71 54.5
.1876
94IW
71 54
.1875
CS.5
Belvidere
40' 50
75 05
1904
5
6 53-5 W
72 18.2
.1836
6 55 W
72 18
.1835
CS.5
Fort Lee
40 51
73 58
1844
3
'
72 41
71 36
CS.I
Hackensack
40 54
74 03
1904
5
8 56. 3 W
72 10.5
• 1845 1
8 58 W
72 10
•1844
CS.4
Paterson
40 55
74 09
1904
5
8 54. 7 VV
72 08.3
• 1852 ,
8 57W
72 08
.1851
CS.4
Newton
41 03
74 46
1904- 5
8 24. W
72 26.3
.1821
8 26 W
72 26
. 1821
CS.5
/
/
Mexican Boundary
31 20
108 12
Do.
31 20
108 38
Do.
31 20
108 52
San Luis Springs
31 20
108 48
Agua del Perro
31 21
108 20
Intersection Point
31 46
106 50
Initial Point
31 47
106 28
Mexican Boundary
31 47
107 22
Do.
31 47
107 44
Do.
31 47
108 12
Rodeo
31 50
109 OI
Carrizalillo
31 51
107 56
Hachita
31 55
108 19
NEW MEXICO
c.g.s.
/
/
1 /
/
c.g.s.
1892.5
12 03.0 E
_
12 18 E
__ _-
CS.dt
1892.5
II 53- 6 E
_
12 09 E
__ __
CS.dt
1892.5
12 14.0 E
_
1 12 29 E
_- _-
CS.dt
1855-3
II 45 E
57 37
.2889
12 02 E
58 03
.2787
CvS.dit
1855.3
II 58 E
57 28
.2838
12 15 E
57 54
•2737
CS.dit
1855-7
II 40 E
II 57 E
CS.dt
1855- I
II 55 E
58 39
.2860
12 12 E
59 09
-2759
CS.dot
1892.3
ID 16. 7 E
10 31 E
- _ _ _
CS.dt
1892.3
II 56.3 E
12 10 E
_- --
CS.dt
1892.3
12 00. 7 E
_
12 15 E
_ _ _ _
•
CS.dt
1903. 4
12 22. 7 E
58 50.4
•2795
12 28 E
58 52
•2792
CS.3
1855-2
12 02 E
58 31
.2824
12 19 E
59 01
.2722
; CS.dit
1903-4
12 32.7 E
59 08. 8
-2777
12 38 E
59 12
■2774
1 CS.3
t U. S. & Mex. Bound. Sur.; W. H. Emory, observer; Am. Acad. Sc, Vol. VI, 1856.
t Rep. Boundary Commission, Washington, 1898; J. F. Hayford, observer.
53819—08-
50 MAGNETIC TABLES AND CHARTS FOR 1905.
Table I. — Observed magneHc elements and the values reduced to January j, igo3 — Continued.
NEW MEXICO—Continued
Station
Lati-
tude
N.
I^ongi-
tude
W.ofGr.
Date
\ 1
Observed
Reduced to 1902
.0
1
Decl'n
Incl'n
H. Int.
Decl'n
Ind'n
H. Int.
1
Orange
f
32 02
/
105 21
1906.3
f
II 51.7 E
/
59 53- 6
C.g.s.
. 2749
/
II 48 E
<
59 52
c. g. s. 1
.2752 1
I
CS.6
Scpar
32 13
108 25
1903- 4 '
12 36. 7 E
59 27.5
• 2763
12 42 E
59 30
.2759
1 CS.3
Deming
32 15
107 46
1905. I i
12 09. E
59 35-9
. 2753 1
12 09E
59 36
.2753
CS.5 •
LasCruces
32 19
106 48
1906.3
12 21.3 E
59 29- 3
.2765 1
12 18 E
59 28
.2767
1 CS.6
Lordsburg
32 20
108 42
1903.4 1
12 40. 7 E
59 39- 9
•2731 1
12 46 E
59 42
. 2728
1 CS.3
Donna Ana
32 22
106 45
1851.5 ,
12 07 E
59 06
-— ;
12 24 E
59 34
CS.dit
Station IX
32 22
107 24
1851.5 '
_
59 09
__
59 38
; CS.it
Jarilla
32 23
106 06
1906.2 1
12 00. 9 E
60 17.7
.2717
11 58E
60 16
. 2720
CS.6
Carlsbad
32 26
104 15
.1902. 1 !
II 34. 8 E
60 17.4
.2752 1
II 42 E
60 22
•2744
1 CS.d2
Prather's Ranch
32 26
105 44
1906.3 1
12 14.8 E
60 II. 2
• 2724 1
12 II E
60 10
•2727
CS.6
McMillan
32 40
104 22
1902. 1 ;
II 18. oE
60 41.3
. 2716
11 25 E
60 46
.2708
CS.d2
Ojo de Inez
32 45
108 14
1851.5 j
59 18
59 46
CS.it
Silver City
32 46
108 18
1906.3 1
12 45.6 E
59 50. 8
• 2730 ,
12 42 E
59 49
.2733
CS.6
Hope
32 48
104 45
1902.3
II 39. 2 E
60 45.8
. 2718
II 45 E
60 50
. 2710
1 CS.d2
Copper Mines
32 48
108 04
1851.5 ,
II 22 E
59 17
II 39 E
59 44
CS.dit
Stegman
32 51
104 25
1902.3
II 35- 9 H
60 52. 2
.2708
II 43 E
60 57
. 2701
CS.d2
Alamagordo
32 54
105 58
1906. 2 '
12 14.0 E
60 16. I
.2726
12 10 E
60 15
• 2729
CS.6
Do.
32 54
105 59
1902.2 ,
II 59. 3 E
60 10. 2
•2745
12 05 E
60 15
.2738
1 CS.d2
Lower Penasco
32 55
105 15
1902. 2
II 35- I E
60 32.7
•2727
II 42 E
60 38
. 2720 ,
I CS.d2
Upper Penasco
32 55
105 29
1902.2
II 23. 6 E
60 26.5
•2750
II 30E
60 32
•2743
CS.d2
Cloudcroft
32 58
106 06
1906.3
12 28. 2 E
60 43.0
.2709
12 25 E
60 42
.2712
CS.6
Tularosa
33 05
106 02
1902. 2 ,
12 15.8 E
60 31.9
.2707
12 22 E
60 36
.2701
CS.d2
Hagerman
33 08
104 18
1902.3 1
II 19. 6 E
61 08. 2
• 2697 ,
II 27 E
61 12
.2691
CS.d2
Engle
33 10
107 03
X906.3
12 46.4 E
60 45.6
.2690
12 43 E
60 44
■2693
CS.6
Mescalero
33 II
105 48
1902. 2
12 23.4 E
60 37.3
. 2720
12 30 E
60 42
.2713
CS.d2
Picacho
33 21
105 09
1902.2
II 46. 8 E
61 30.9
.2678
II 54 E
61 36
. 2671
, CS.d2
Roswell
33 24
104 32
1902. 1
12 06. 5 E
61 22.9
.2683
12 14 E
61 28
.2676
CS.d2
Lincoln
33 31
105 24
1902. 2
12 09. 4 E
61 30.9
. 26.79 '
12 16 E
61 36
.2673
CS.d2
Capitan
33 35
105 35
1902. 2
12 22. 7 E
61 57.3
.2646
12 29 E
62 02
.2640 1
CS.d2
Campbell
33 37
104 15
1902. 1
II 41.0 E
61 36.5
.2675
II 49E
61 41
.2667
CS.d2
Fort Craig
33 38
107 00
1900.0
12 29.5 E
61 02.9
.2677
12 39 E
61 08
.2666
CSd2
Carrizozo Ranch
33 42
105 53
1902. 2
12 31-4 E
61 21.6
. 2680 1
12 38 E
61 24
.2673
CS.d2
White Oaks
33 46
105 44
1902.2
12 40. E
61 33.3
. 2668
12 47 E
61 36
.2661 1
CS.d2
Kenna
33 53
103 47
1902. 1
II 48. 4 E
62 06. I
.2642
II 56E
62 10
• 2634
CS.d2
Socorro
34 05
106 53
1900.0
12 47-5 E
61 32. 2
.2651
12 57 E
61 39
. 2640 1
CS.d2
Portales
34 12
103 20
1901.9 1
II 25.8 E
62 45. 7
. 2601 ;
II 33 E
62 50
.2592
CS.d2
Torrance
34 21
105 32
1906.3
12 36.7 E
62 07. 2
. 2621
12 33 E
62 06
.2624 1
CS.6
Isleta
34 54
106 40
1853- 8
13 13 E
62 24
• 2679
12 59 E
62 45
.2572 '
CS.dit
Santa Rosa
34 56
104 41
1906.3
12 14. 2 E
62 59.9
.2570
12 II E
62 58
• 2574 i
CS.6
Rio San Jose
35 01
107 14
1853.9
13 46 E
63 18
. 2602
13 32 E
63 39
.2495
CS.dit
Cedar Forest
35 01
108 55
1853-9
13 01 E
61 40
.2733
12 47 E
62 02
.2626
CS.di :
Agua Fria
35 02
107 58
1853.9
13 25 E
62 05
•2709
13 II E
'62 26
.2602
CS.di :
Laguna
35 03
107 24
1903.2
13 08. 7 E
62 41.0
. 2602
13 14 E
62 43
.2598
CS.3
Inscription Rock
35 03
108 14
1853.9
12 57 E
62 03
.2699
12 43 E
62 24
.2592
CS.di
Covero
35 05
107 26
1853.9 ,
13 49 E
62 26
.2680
13 35 E
62 47
.2573
CS.dit
Hay Camp
35 05
107 39
1853.9
13 56 E
62 3a
13 42 E
63 00
CS.di;;
Arch Spnng
35 05
108 48
1853.9
61 55
•2715
62 16
.2608
CS.it
Albuquerque
35 06
106 39
1899.9 ,
13 00. E
62 42. -2
.2592
13 10 E
62 49
.2581
CS.d2
Zuni River
35 06
108 39
1853. 9 ,
13 24 E
62 02
•2705
13 10 E
62 23
.2598
CS.dit
Tucumcari
35 10
103 47
1906.3
12 24. 9 E
63 17.9
■2567
12 21 E
63 16
•2571
CS.6
Grant
35 10
107 51
1899.9
14 19.0 E
62 45. 2
• 2555
14 30 E
62 52
•2544
CS.d2
Fort Wingate
35 29
108 32
1899.9 1
13 21.0 E
63 00.9
.2570
13 34 E
63 08
.2559
CS.d2
East Las Vegas
35 35
105 14
1900. '
12 48. 9 E
63 49. 6
.2537
13 00 E
63 56
.2526
CS.d2
Nara Visa
35 36
103 09
1906.3
II 49- 4 E
64 08. 3
. 2510
II 46 E
64 07
.2513
1 CS.6
Sante Fe
35 41
105 57
1899.9
12 34.8 E
63 36. 6
.2543
12 46 E
63 44
.2532
1 CS.d2
Fort Union
35 54
105 01
1888.9
13 25.0 E
63 50. 2
•2504
13 30 E
64 04
•2477
CS.di
Springer
Clayton
36 22
104 36
1900.0 ,
14 04. 8 E
64 10. 2
.2528
14 18 E
64 17
•2517
CS.d2
36 27
103 10
1900.0 '
10 25.6 E
64 59- 2
•2435
10 36 E
65 06
.2424
CS.d2
Tres Piedras
36 42
105 57
1899.9
13 20.0 E
64 20. 9
. 2480
13 31 E
64 28
.2469
CS.d2
Folsom
36 52
103 56
1903. 2
12 44.4 E
65 10.9
.2438
12 49 E
65 12
.2432
CS.3
Lumberton
36 57
106 55
1899.9
13 42.7 E
64 37. 8
. 2462
1*3 55 E
64 42
•2451
CS.d2
■ U. S. & Mex. Bound. Sur.; W. H. Emory, observer; Am. Acad. Sc, Vol. IV, 1856.
: J. C. Ives and A. W. Whipple, observers; C. & G. S. Report, 1856, p. 222.
MAGNETIC ELEMENTS IN THE UNITED STATES. 51
Table I. — Observed magnetic elements and the values reduced to January i, 1903 — Continued.
NEW YORK
Observed
Reduced to xoo<
f.O^
Lati-
Longi-
1
Source
Station
tude
tude
Date
N.
W.ofGr.
Dccl'n 1 Incl'n
H. Int.
Decl'n
Ind'n
H. Int.
Cole
f
'40 32
/
74 14
1
1846.3
• / ; /
5 37-4 W' 72 34.2
c.g.s.
•1857
/
9 02 W
/
71 37
C.g.s,
.1895
CS.di
Far Rockaway
40 36
73 46
1875. 6
7 12 W
8 52 W
1 CS.d
Fire Island
40 38
73 14
1904.6 ;
9 13.3 Wl 72 09.9
.isii
1 9 15 W
72 10
. 1840
, CS.5
Howard
40 38
74 05
1840. 5
5 01 W,
' 845W
_ _ _ _
CS.d .
Mount Prospect
40 40
73 58
1860.7
6 44. oW
72 40.8
.1868
9 18 W
71 34
. 1916
CS.di
Babylon
40 42
73 20
1875.6 '
7 35 W
_
1
: 9 13 w
CS.d
Patchogue
40 45
73 02
1875.6
8 00. 5 W
72 45-4
.18V
i 9 38W
71 56
.1853
NA.di
West Hampton
40 49
72 39
1904.6
10 20. 5 W
72 04. 4
.1848
10 22 W
72 04
.1848
CS.5
West HUls
40 49
73 26
1865.6
7 01.5 W
72 56. 8
. 1812
i 9 18W
71 51
.1855
CS.di
Legget
40 49
73 54
1847. 8
5 41. oW
72 52.7
•1833
1 9 ooW
71 48
.1877
CS.di
Riverside Park
40 49
73 58
1885. 8
8 59. 7 W
72 12.0
. i860
10 04 w
71 49
. 1862
CS.di
Manhattanville
40 50
73 56
1846.3
5 09. 7 w
72 39-
. 1848
j 8 34W
71 35
.1888
CS.di
Blind Asylum
1
Ruland
40 51
73 02
1865.4
7 30. 8 W ; 72 54. 9
. 1819
' 9 48 w
71 49
.1863
CS.di
Oyster Bay
40 52
73 31
1904.6
9 28. I W 72 06. 1
• 1851
, 9 30W
72 06
• 1851
CS.5
Sands Point
40 52
73 44
1847.8 ,
6 09.9 W '
' 9 29 w
_ _ _ _
CS.d
New Rochelle
40 52
73 47
1844. 7 >
5 29.5 W
72 44.0
. 1773
; 9OOW
71 41
. 1809
CS.di
New York, Bronx P.
40 52
73 52
1905.8
9 08. 1 W
72 02.0
.1869
1 9 05 W
72 02
. 1870
CS.6
40 56
73 04
1845. 7
6 03. 6 W
_
; 9 36W
- - - -
CS.d
Lloyd Harbor
40 56
73 25
1844.7
6 If. 6 W * 72 50. 6
.1778
946W
71 44
. 1814
CS.di
Setauket
40 57
73 07
1904.6
9 19.3 W; 72 23.8
. 1814
9 21 W
72 24
.1814
CS.5
East Hampton
4058
72 12
1875.6
9 05. 6 W
72 47.3
.1838
10 42 w
71 56
.1868
CS.di
Lightning
40 58
72 59
1903. 2 1
9 59- 3 W
10 06W
__- - '
CS.3
Crane Neck
40 58
73 09
1903.2 I
9 16. 8 W
_
9 23W
_ . _ _
CS.3
Sag Harbor
41 00
72 17
1860.7
8 27.7 W
73 20.9
. 1800
11 04 W
72 05
. 1867
CS.di
Port Chester
41 00
73 40
1844.7
5 58.0W
72 53.4
932W
71 49
CS.di
Duer
41 00
73 54
1873.6
7 37 W
9 24 W
CS.d
White Plains
41 01
73 46
1904.7
9 59.0 W
71 47.3
.1873
10 ooW
71 47
•1873
CS.5
Montauk Point
41 02
71 55
1904.6
10 05.5 W
71 58.6
. 1840
10 07 w
71 58
• 1839
CS.5
Greenport
41 06
72 22
1904.6
10 25. 2 W
72 07. 3
.1855
10 27 W
72 07
• 1854 1
CS.5
Buttermilk
41 07
73 49
1833-5
3 56 W
8 13W
CS.d
New City
Bald Hill
41 09
74 00
1904.7
9 50.4 W
72 16.0
.1833
9 52W
72 16
. 1832
CS.5
41 13
73 29
1833.6
5 34 W
954W
-_ -_
1
CS.d
Carpenters Pt., Port
41 21
74 42
1873.5
7 04. 8 W
73 14.3
. 1797
859W
72 28
. 1821
CS.di
Jervis
Carmel
41 25
73 41
1904.7
10 35.9 W
72 29.5
. 1815
! 10 37 w
72 29
.1815
CS.5
Cold Spring
41 25
73 58
1855. 7
5 34.0W
73 54. 8
.1747
8 29 W
72 47
. 1793
CS.di
Goshen
41 25
74 19
1904. 7 ; 8 50. 3 w
72 32.5
. 1804
8 51 W
72 32
. 1804
CS.5
Monticello
41 38
74 43
1904. 7 i 8 09. 5 W
72 49.4
. 1762
8 II W
72 49
. 1762 ,
CS.5
Poughkeepsie
41 43
73 55
1904.7
9 2 1 . 7 W
73 04. 1
.1758
1 9 23 w
73 04
. 1758 '
CS.5
Kingston
41 57
73 59
1904.7
10 03. 5 W
72 48. 6
.1768
i 10 04 W
72 48
. 1768
CS.5
Binghamton
42 05
75 56
1888.5
7 49. 2 W
1 8 49W
CS.d
Big Indian
42 06
74 26
1905.8
9-55.3W
73 00.5
• 1770
1 9 52W
73 01
. 1770
CS.6
Elmira
42 07
76 50
1905.5
7 52.3W
73 22.9
. 1740
■ 7 51W
73 23
. 1741
CS.6
Belmont
42 13
78 02
1905.5
6 02. 8 W
73 22.0
. 1758
6 02 W
73 22
• 1758
CS.6
Delhi
42 15
. 74 56
1905.5
9 33. 7 W
73 27.5
. 1742 .
9 32 W
73 28
. 1743
CS.5
Do.
42 15
74 56
1905.8
9 39. 4 W
73 20.4
. 1735
9 36W
73 21
. 1736
CS.6
Little Valley
42 16
78 48
1905.5
4 39. 8 W
73 27.3
.1760
4 39W
73 27
. 1760
CS.6
Maysville
42 16
79 31
1874. 6
2 15.0W
74 05.0
. 1721
4 19W
73 26
.1748
NA.di
Bath
42 21
77 21
1862.6
4 47. 9 W
74 26. 2
. 1690
7 46 w
73 36
. 1728
CS.di
Do.
42 22
77 21
1874.6
5 34. 4 W
74 15.5
. 1717
7 39 W
73 36
. 1745
NA.di
Oxford, new sta.
42 27
75 35
1905.5
9 04. 2 W
73 26.8
. 1744
9 03 W
73 27
• 1743
cs.>
Oxford, old sta.
42 27
75 36
1905.5
8 49. 2 W
73 23.9
.1746
8 48 W
73 24
.1745
CS.5
Ithaca
42 27
76 29
1890.*
6 31.5 VV
73 49- 5
. 1692
7 25 W
73 40
. 1707
CS.di
Ithaca (new)
42 27
76 29
1907.5 7 31.9 W
73 43. I
. 1702
7 23 W
73 43
. 1700
CS.7
Greenbush
42 38
73 44
1855.7 ,j 7 54- 7 W
75 ". 1
. 1654
10 56 W
74 00
. 1704
CS.di
Albany
42 40
73 45
1905. 7 11 08.0 W
• 1693
II 06 W
. 1693
CS.6
Do.
42 40
73 45
1905.7 1
-_
73 43- 3
' _ - - -
73 44
CS.6
Penn Yan
42 40
77 05
1887.4 \
7 17.5 W 73 50.0
. 1728.
8 22 W
73 35
. 1742
CS.dit
Sherborne
42 41
75 33
1875.7
7 49.5 W 74 15.1
. 1718
9 46 W
73 37
.1749
CS.di
Warsaw
42 45
78 08
1905.5
5 27.0W
73 44.9
. 1726
: 5 26 W
73 45
. 1726
CS.6
Otsego
42 47
74 42
1882.6
8 46. 2 W
73 55-4
. 1694
' 9 59 W
73 32
. 1718
CS.di
Cooks Point
42 52
77 17
1888.4
6 57. 7 W
._
. 1716
i 8 02 W
. 1728 ,
CS.dit
Buffalo
42 54
78 54
1903.7
6 22. oW
6 27 W
-- __
1
LS.3E
Do.
42 54
78 55
1905.4
6 15.2 W 73 46.4
. 1714
6 14 W
73 46
.1715
CS.5
Fenner
42 57
75 45
1882.8
7 i5-4W| 74 18.4
. 1681
8 32 W
73 55
. 1704 ,
CS.di
Auburn
42 57
76 33
1907.5
8 29. 7 W 1 73 56. 4
• 1704
8 21 W
73 56
. 1702 .
CS.7
tTh
e observ
ations wer
e made by Co
mell Univc
srsity st
udents.
52 MAGNETIC TABLES AND CHARTS FOR 1905.
Table I. — Observed magnetic elements and the values reduced to January i, 1903 — Continued.
NEW YORK— Continued
Station
Johnstown
Howlett
Clinton
Clyde
Niagara Falls
Rochester
Charlotte
Do.
Fort Niagara
Sodus Point
Olcott
Loomis
Caldwell
Penmount
Lake George
Prospect
Port Ontario
Mannsville
Pierrepont Manor
Beaver River
Sacketts Harbor
Antwerp
Elizabethtown
Saranac Lake
Potsdam
Plattsburg
Malone
Rouse Point
43 00
43 00
43 03
43 03
43 04
43 09
43 13
43 16
43 15
43 16
43 20
43 21
43 23
43 23
43 25
43 26
43 34
43 43 I
43 44
43 54 ,
43 57
44 12 I
44 13
44 20 I
44 37 I
44 40 I
44 51
45 00
%
Lonci-
tude
Observed
Date
JV.ofOr.
/
74 24
1905-6
76 17
1883. 7
75 24
1874.8
76 52
1883. 7
79 04
1874.6
77 38
1874.6
77 40
1^3.4
77 37
1903-7
79 04
1859.4
76 59
1903.7 ■
78 43
1903.7
76 17
1882.9
73 40
1903.4 '
75 16
1882.6
73 42
1905.6
73 45
1882.6 1
76 12
1903.7
76 03
1884.4
76 03
1874. 8 .
74 55
1905.6
76 07
1873.4 1
75 37
1905.5
73 34
1905- 6
74 09
1905-6
75 00
1874. 8
73 27
1905. 6
74 17
1905.5
73 21
1879.8
Decl'n
Ind'n
/
/
II 22. 9 W
73 43- 7
7 47. 1 W
74 17.5
8 05.5 W
74 37-5
7 04.4 W
74 31.8
3 37. 1 W
74 37- 7
5 17.8W
74 38. 5
3 46. 2 W
74 50 '
6 21. oW
255.7W
74 51
9 09. 9 W
6 20. I W
_
8 10. oW
74 47- 7
II 29 W
8 32.2 W
74 31-4
11 56. 3 W
74 13.7
10 50. 8 W
74 43. 5
10 07.0 W
6 50.9 W
6 II. 9W
75 25. 1
10 40. 4 W
74 51.9
8 14. 9 W
75 24
ID 27.4 W
75 17.4
13 13. 9 W
74 51.3
10 20. 6 W
74 40. 3
9 25. I W
76 03. 3
II 48. oW
74 04. 6
15 II. 6 W
74 26.3
13 39. 1 W
76 18. 2
H. Int.
c. g. s.
. I7II
.1671
. 1676
• 1651
. I68I
• 1675
.1675
. 1652
. 1622
.^663
• 1650
.1625
. 1599 1!
. 1600 I
. 1604 I
. 1600 I
,. 1564 I
'. 1580 ll
. 1629
. 1507
. 1695
. 1659
. 1508
Reduced to 1905.0
Decl'n I Incl'n j H. Int.
7
5
6
6
9
6
II 21 W
9 05 W
10 04 W
8 27 W
5 48 W
20 W
59 W
26 W
06 vv
15 w
25 w
9 32 W
11 34 W
9 50 W
11 55 W I
12 04 w'
10 14 W
8 04 W 1
8 ioW|
10 38 W
10 00 W I
10 25 w
13 12 W
10 18 w
11 06 w
II 46 w
15 10 w
14 50 w
73 44
73 55
73 58
74 09
73 58
73 58
74 09
c. g. s.
I. 1711
I- 1695
;. 1708
1. 1671
. 1717
- 1709
. 1710
74 00 1. 1696
74 25 . 1645
74 07 . 1686
74 14 I. 1650
74 16 !. 1656
74 43
74 52
74 40
75 18
74 52
74 41
75 16
74 05
74 27
75 36
. 1622 !
-1635
. 1604
.1638
- 1563 .
. 1580 i
. 1629
. 1552
. 1694
.1658
. 1549
Source
CS.6
CS.di
CS.di
CS.di
NA.di
NA.di
LS.di
LS.3E
LS.di
LS.3E
LS.3E
CS.di
CS.d
CS.di
CS.6
CS.di
LS.3E
CS.di
CS.di
CS.6
LS.di
CS.6
CS.6
CS.6
CS.di
CS.6
CS.6
CS.di
NORTH CAROLINA
Southport
Ft. Johnson, Smith-
ville
Wilmington
Lake Waccamaw
Whiteville
Fair Bluff
Burgaw
Elizabethtown
Lumberton
Beaufort
Jacksonville
Laurinburg
Rockingham
Kenansville
Wadesboro
Monroe
Warsaw
Clinfbn
Hayesville
Fayetteville
Portsmouth Ids.
Trenton
Murphy
Newbem
Bayboro
FrankHn
Charlotte
Brevard
Columbus
CapeHatterasL. H.
Kingston *
Shelby
/
/
33 55
33 55
78 01
78 01
34 14
34 18
34 19
34 19
34 32
77 57
78 32
78 42
79 01
77 55
34 36
34 36
34 43
34 44
34 47
34 54
34 58
34 58
34 58
34 59
35 00
35 02
35 03
35 04
35 04
35 05
35 07
35 08
35 II
35
35
35
35
35
35
78 32
78 58
76 40
77 22
79 28
79 46
77 58
80 03
80 34
78 05
78 19
83 49
78 52
76 03
77 21
84 03
77 03
76 45
83 23
80 51
82 44
82 10
75 3^
77 35
81 33
1906. 6
1887. 2
1898.6
1891.4
1899.9
1891.4
1899-5
1899.9
1899.9
1898.3
1898.6 ,
1899.9
1899. 6
1899.5
1904. 8
1899. 6
1891. 4
1899-5
1900. 7
1899.4
1871.3
1900. 8
1898. 7
1906. 6
1898.5
1898. 7
1899. 6
1898.8
1900. 8
1898.5
1899.4
1899. 6
2 14. o W
I 07. 8 W
<» ' .c.g.s,
65 48. 5 ;. 2345
65 34.0 1.2387
50.
41.
43.
36.
28.
37.
12.
36.
28.
20.
24.
37-
o 08.
o 15.
34.
33.
04.
41.
22.
54.
18.
13-
43.
36.
23-
27.
05.
53-
50.
05-
vl
2 W
2 W
8 W
5 w!
8 w;
8 W
o W
3 W
8 W
6 W
o W
o W
5W
8 W
9 W
3Wi
5E '
7 W
o W
6 W
2 E '
6 W
2 w!
3E
8E I
5 W
o W
9W
4
Wl
66 16. o .
65 57.4 |.
65 49.3 •
65 48.0 I.
66 32.5 ■
66 22.0 j.
66 01. 7 .
66 27. I |.
66 25.5 '
66 30. 2 I.
66 25.3 |.
66 56. 7 .
66 45.0 .
66 10. 7 .
66 42. 4 .
66 50.5 I.
66 13.4
66 48. o \
67 13.6 .
66 5 I . 2 .
66 52.5 :»
67 03.5 .
67 GO. 8 .
66 24. 2 .
66 33. 8 ;.
66 15. I .
66 24. I .
67 09. o .
67 04. o .
66 43. I .
2332
2340
2377
2370
2334
2328
2365
2308
2329 i
2332 I
2328 I
2291 I
2293
2365 I
2282 '
2299
2389
2313
2303 1,
2284 '
2334
2251
2284 '
2330
2314
2356
2345 1
2246
2287
2335 '
2 loW
2 09 W
2 07 w
I 26 w
I 56 w
I 19 w
I 42 w
I 50 w
1 24 w
2 54 W
2 46 W
I 32 w
1 37 W
1 50 W
o 09 W
28 W
2 19 w
1 47 W
57 H
1 55 W
4 26 W
3 06 W
2 06 E
3 09 W
3 03 W
1 23 E
o 36 W
o 14 E
o 13 W
4 14 W
2 04 W
o 17 W
° ' \c.g.s.\
65 47 j.2351 I
65 44 I- 2353 1|
66 26 I
66 08 '
65 57 I
65 59
66 40 I
66 29
66 09
66 36 '
66 34
66 38
66 32
67 04 I
66 45
66 18 I
66 52
66 57
66 20 I.
66 55
66 55
66 53
66 59
67 02
67 09
66 S2
66 42
66 24
66 30
67 16
67 10
66 52
2313 I
2316 I
2359 I
2343
2315 ,
2310
2347 ,'
2289
2310 I
2314 I
2310 ,
2272 I
2293 ,
2347 I,
2258 ll
2280
2375 I
2294
2255
2269 i
2314 I
2257 ,1
2266
2312
2295 I
2338
2331
2227
2268 I
2317 '
CS.7
CS.di
CS.d2t
CS.di
CS.d2t
CS.di
CS.d2t
CS.d2-
CS.d2"
CS.d2-
CS.d2-
CS.d2 ■
CS.d2-
CS.d2t
CS.5
CS.d2t
CS.di
CS.d2t
CS.d2
CS.d2t
CS.di
CS.d2
CS.d2t
CS.7
CS.d2t
CS.d2-
CS.d2"
CS.d2"
CS.d2
CS.d2t
CS.d2t
CS.d2t
t These observations were made under the joint auspices of the U. S. Coast and Geodetic Survey and the North
Carolina Geological Survey (J. A. Holmes, State Geologist). Cj. App. 9, C. & G. S. Report for 1899, Washington, 1900.
MAGxNETIC ELEMENTS IN THE UNITED STATES.
53
Table I. — Observed magnetic elements and the values reduced to January i, 1905 — Continued.
NORTH CAROLINA— Continued
Observed
Reduced to loos
.0
Lati-
^S£"
.
tude
tude
Date
Source
N.
W.ofGr.
/
Ded'n
Ind'n
H. Int.
Decl'n
Ind'p
H. Int.
c. g. s.
/
/
/
c. g. s.
y
/
Dallas
35 19
81 13
1900. 8
06.2 w
66 31.6
.2320
15 w
66 38
.2305
CS.d2
Hendersonville
35 19
82 28
1900.8
08.4 w
66 21.3
.2357 ;
I6W
66 28
• 2343
CS.d2
Carthage
35 20
79 25
1899. 6 ;
I
16. 2 W
66 45- 7
.2304
I 30 VV
66 51
.2285
CS.d2t
Robbinsville
35 20
83 47
1900.7 1
I
41. 8E
66 33.6
.2346
I 34 E
66 40
• 2332
CS.d2
Webster
35 21
83 14
1898. 8
I
43- oE
66 48.1
• 2326
I 30 E
66 56
.2308
CS.d2t
Lillington
35 22
78 47
1899.9
I
59- 4 W
66 48.0
.2297
2 12 VV
6654
.2279
CS.d2t
Troy
35 22
79 52
1899.8 .
I
26.3 W
66 39.6
■2333
I 40 VV
66 46
.2315
CS.d2t
Albemarle
35 22
80 12
1900. 8
I
10. I VV
66 41.1
•2331
I 18 W
66 47
.2316
CS.d2
Rutherford ton
35 22
81 57
1899.6
15.6 W^
66 44. 4
.2339
27 W
66 52
.2321
CS.d2t
Goldsboro
35 23
77 59
1899.4
I
50. 3 W
67 01. 6
. 2291
2 04 VV
67 08
.2271
CS.d2
Do.
35 23
77 59
1906.5
_
67 07. 7
.2258
_ _
67 06
.2263
CS.7
Swanquarter
35 24
76 19
1898. 5
3
18.9 W
67 14.2
.2258
3 39 W
67 20
• 2239
CS.d2
Concord
35 24
80 35
1899. 7
2
48. 8 W
67 08. 8
. 2264
3 ooVV
67 16
.2245
CS.d2
Bryson City
35 25
83 27
1898. 7
55.5 E
66 36. I
.2341
43E
66 43
.2322
CS.d2
Snowhill
35 28
77 37
1899- 5
3
26. W
67 08. I
.2317
3 40 W
67 14
.2299
CS.d2
Lincolnton
35 28
81 16
1899.6
35. 8 W
6647.4
.2323
047W
66 55
• 2304
CS.d2t
Waynesville
35 30
82 59
1900.7
38. 8 E
66 51.9
•2317
31 E
66 58
.2302
CS.d2
Smithfield .
35 32
78 21
1899.4
56. 8 W
66 12.2
■2377
I II VV
66 18
.2358
CS.d2t
Washington
35 33
77 03
1898.5
2
44. W
67 16.7
.2251
3 04 VV
67 23
.2232
CS.d2-
Chicamicomico
35 35
75 28
1898.4
3
52. 3 W
67 21.0
.2256
4 14 W
67 28
.2237
CS.d2
Asheville
35 35
82 32
1898. 7
13. 4 E
66 57. 8
.2322
00
67 06
.2303
CS.d2-
Greenville
35 36
77 22
1898.5
2
33.5 w
67 19.9
. 2261 ;
2 54 W
67 26
.2242
CS.d2-
Salisbury
35 40
80 30
1905.3
33. 4 W
67 13.7
■2245 ;
033W
67 13
. 2246
CS.5
Newton
35 40
81 13
1900. 8
15. 6 W
66 53- 4
■ 2312
24 W^
66 59
. 2298
CS.d2
Marion
35 40
82 01
1898. 6
53. 6 W
66 39. 9
. 2338
I 08 W
66 48
• 2319
CS.d2t ■
Ashboro
35 42
79 49
1899.8
I
58. 8 W^
67 13.0
. 2282
2 12 VV
67 20
. 2264
CS.d2t
Pittsboro
35 43
79 II
1899.5
2
35.0 \v
67 10. 9
.2293
2 48 VV
67 17
.2274
CS.d2t
Wilson
35 44
77 55
1899. 4
I
59.6 w
67 34. 5
. 2261
2 14 W
67 40
. 2242
CS.d2t
Morganton.
35 44
81 43
1906.6
38. 8 W
67 07. 2
. 2280
36W
67 05
.2286
CS.7
Statesville
35 47
80 53
1899.7 .
50. 5 W
67 14.4
• 2303 1
I 02 VV
67 21
.2285
CS.d2t
Marshall
35 47
82 40
1898.7
14- 6 E
67 04. 9
.2309 1
02 E
67 12
.2291
CS.d2t
Marshall A
35 48
82 41
1906. 6
16. 4 W
67 15.8
. 2280
14 VV
67 14
.2285
CS.7
Raleigh
35 48
78 40
1906.6
2
54. 2 w
67 28.3
.2244
2 50 VV
67 27
. 2248
CS.7
Raleigh A
35 48
78 42
1906.6
2
21.8 W
67 36.5
. 2239
2 18 VV
67 35
.2244
CS.7
Bodies Island
35 48
75 32
1847.0
I
13.4 w
68 18. I
.2193 1
4 48 VV
67 50
.2159
CS.di
Jamesville
35 48
76 52
1891.4
2
09. 2 VV
67 27. I
. 2236
2 55 W
67 32
. 22II
CS.di
Sand Island
35 50
75 40
1876. I
2
58.9VV
68 05.4
.2256
4 44 W
67 46
. 2226
CS.di
Williamston
35 50
77 02
1899.9
3 05.3 W
67 39-5
.2232 ;
3 20 VV
67 44
.2215
CS.d2t
Lexington
35 50
80 16
1900.8
04. 9 VV
67 08. 5
. 2283
14 VV
67 14
.2268
CS.d2
Warm Spring
35 50
82 48
1833. 7
_
67 39
67 24
CS.i
Plymouth
35 52
76 44
1898.4
3
26." 9 W
67 34-4
.2235
3 49 W
67 41
. 2216
CS.d2t
Mocksville
35 53
80 34
1900.8
I
18.3 w
66 48. 3
.2310 ,
I 28 VV
66 53
.2295
CS.d2
Chapel Hill
35 54
79 05
1906. 6
I
54.0VV
67 51.8
. 2191 '
I 50 VV
67 50
. 2196
CS.7
Tarboro
35 54
77 37
1899- 3
3
33. 2 VV
67 58. 2
. 2218
3 50 W
68 04
. 2200
CS.d2t
Lenoir
35 54
81 32
1900.7 ;
36. 5 W
67 12.6
.2302
46 VV
67 19
. 2287
CS.d2
Bumsville
35 54
82 17
1900.7
01.3 E
67 16.2
. 2291
06 VV
67 25
. 2276
CS.d2
Manteo
35 55
75 40
1898.4 ;
4
22. 2 VV
67 33-6
.2227
4 44 W
67 40
. 2208
CS.d2t
Columbia
35 55
76 15
1899-3 ;
4
01. I VV
67 26.4
■2254
4 19 W
67 32
.2236
CS.d2t
Taylorsville
35 55
81 10
1900.8
36. 6 VV
67 09.9
. 2289 ■
46 VV
67 16
.2274
CS.d2
Windsor
35 56
76 59
1898.4
4
29. 6 VV
67 38.6
• 2249 1
4 50 VV
67 45
• 2230
CS.d2t
Rockymount
35 56
77 48
1900.4
2
30. 2 VV
67 39.0
.2231
2 44 W
67 44
.2215
1 CS.d2
Nashville
35 58
77 58
1899.4
I
42. 2 W
67 44.0
. 2202 1
I 58 VV
67 50
.2183
CS.d2t
Bakersville
36 01
82 09
1900.7
40. 8 VV
67 22.0
. 2288
49 VV
67 28
■ 2274
■ CS.d2
Louisburg
36 03
78 19
1900.0
2
24. I VV
67 40. 8
•2237
238W
67 46
. 2220
CS.d2t
Durham
36 03
78 55
1898.3
I
18.9 VV
67 41.6
. 2265
I 37 W
67 48
. 2246
CS.d2t
Poore
36 03
81 09
1895.7 1
25. 7 VV
67 23.6
• 2275
52 W
67 30
. 2252
CS.di
Shellbank
36 04
75 44
1847.2
I
44. 8 VV
68 37. 8
■2173
5 i8VV
67 54
.2139
CS.di
Edenton
36 04
76 36
1898.4
3
29. 2 VV
67 48.9
. 2221
3 52 W
67 55
. 2202
CS.d2l
HUlsboro
36 04
79 05
1898.3
2
03. 9 W
68 30.6
• 2197
2 24 W^
68 37
.2178
CS.d2-
Graham
36 04
79 24
1900.0
2
02. 9 vv^
67 12*.
.2308
2 17 VV
67 17
. 2291
CS.d2-
Greensboro
36 04
79 49
1899. 7
50. 3 W
67 56. 8
.2227
I 04 VV
68 03 '
. 2209
CS.d2-
Stevenson Point
36 06
76 II
1847. 1 1
I
39- 6 VV
68 54- 5
.2149
5 13 W
68 09
.2115
CS.di
Winston-Salem
36 06
80 15
1899.7 ;
I
42.9 VV
67 28.5
.2266
I 56 w
67 34
. 2248
CS.d2t
Roan High Bluflf
36 06
82 09
1907.4
I
26.9 E
67 54.0
•2259
I 30 E
67 51
. 2269
CS.7
Yadkinville
36 08
80 39
1900. 6
I
02.6 W
67 27.5
.2271
I 14 VV
67 32
• 2256
CS.d2
Wilkesboro
36 09
81 09
1899.7
29. 7 w
67 40. I
• 2265
42 VV
67 46
■ 2247
CS.d2t
Hertford
36 II
76 28
1899.3
3
15. 1 w
67 53.4
.2215
3 35 W
67 58
.2197
CS.d2
\
t These observations were
Carolina Geological Survey (J.
made under the joint auspices of the U.
A. Holmes, State Geologist). Cf. App. 9,
S. Coast and Geodetic Survey and the North
C. & G. S. Report for 1899, Washington, 1900.
54 ^ MAGNETIC TABLES AND CHARTS FOR 1905.
Table I. — Observed magnetic elements and the values reduced to January i, j^o^ — Continued.
NORTH CAROLINA— Continued
Lati-
tude
N.
Loxiffi-
tude
W.ofGr.
Observed
Reduced to 1905.0
Station
Date
Decl'n
Ind'n
H, Int. 1
Decl'n
Ind'n
H. Int.
c. g. s.
Source
/
/
/
/
cg.s.
/
/
Boone
36 13
81 41
1900.6
39- 7 W
67 51- 1
• 2236
48 w
67 57
. 2221
CS.d2
Elizabeth City
36 18
76 13
1898.4
4 14.4 W
68 03. 8
. 2207
4 37W
68 10
.2188
CS.d2t
Oxford
36 18
78 38
1898.3
2 00.5 w
67 48.6
•2237
2 22 W
67 55
.2218
CS.d2t
Camden
36 19
76 12
1900.9
4 21. 9W
67 58. 3
.2201
434W
68 02
. 2187
CS.d2
Halifax
36 19
77 37
1906.5
2 19. 7 W
68 03. 6
•2175
2 15 w
68 02
.2180
CS.7
Henderson
36 22
78 22
1899.9
2 32.0W
67 54- 7
. 2219
2 48W
68 00
. 2202
CS.d2t
Gatesville
36 23
76 48
1899.3
3 45. 2 W
68 09.7
.2222
404W
68 15
.2203
CS.d2-
Jackson
Roxboro
36 23
77 29
1899- 3
3 11. I W
68 02.5
. 2216
3 28 W
68 08
.2198
CS.d2-
36 23
78 59
1898.3
2 II. 4W
67 58.4
. 2207
2 32 W
68 05
.2188
CS.d2
Winton
36 24
76 59
1899.3
3 15.8W
68 13.4
. 2220
3 35 W
68 18
. 2201
CS.d2
Warrenton
36 24
78 09
1898.3 1
2 25. 2 W
68 02.0
. 2206
i 2>48W
68 08
. 2187
CS.d2-
\
Yanceyville
36 24
79 22
1900.6 :
2 00.0 W
67 55. I
. 2209
2 14 W
68 00
.2194
CS.d2
Wentworth
36 24
79 47
1899.7
I 57-7 W
67 46.3
■2244
2 14 W
67 52
.2225
CS.d2t
Jefferson
36 24
81 28
1900. 6
43. 1 w
67 44-7
.2236
054W
67 50
. 2222
CS.d2
Danbury
36 26
80 12
1900.6
2 23. I W
67 54.5
.2216
2 35 W
67 58
. 2201
CS.d2
Currituck
36 27
76 01
1898.4
4 46. I w
68 17.6
.2187
5 loW
68 24
.2168
CS.d2t
Weldon
36 27
77 38
1887. 2
2 30. 8 W
68 06.8
•2194
3 36W
67 58
. 2167
CS.di
Mount Airy
36 30
80 37
1899.7
I 13. oW
67 58.0
.2226
1 28 W
68 03
.2208
CS.d2t
Sparta
36 31
81 09
1900.6
39- 9 W
67 47.0
. 2236
50W
67 52
. 2222
CS.d2
Nottawav R.
36 32
7656
1887.2
2 30. 1 W
68 31.6
. 2184 '
3 36 W
68 23
•2157
CS.dx
Knott L, N. C. &
36 33
75 56
1887. I
3 33.2 W
68 27.9
.2193
441W
68 25
.2166
CS.di
Va. Boundary
Northwest, N. C. &
36 33
76 12
1887.0
2 54.0 W
68 29.8
.2184
1 4 01 W
68 21
•2157
CS.di
Va. Boundary
1
!
NORTH DAKOTA
/
/
/
Haley
45 58
103 08
1906.6
16 08.9 E
Ellendale
46 00
98 34
1905
5
12 04.9 E
Hawkinson
46 02
96 57
1906
6
11 24. 4 E
Ashley
46 03
99 23
1906
7
13 18. 1 E
Linton
46 16
100 15
1906
7
14 10. 3 E
Napoleon
46 30
99 46
1906
7
12 46.7 E
New England
46 33
102 53
1906
6
16 26.9 E
Bismarck, C. H.
4648
100 47
1890
6
15 14.9 E
grounds
Fargo
46 51
96 47
1906
7
" 33- 9 E
Fargo (new)
46 52
96 48
1906
8
II 10. 7 E
Dickinson
46 53
102 46
1906
6
16 33. 7 E
Jamestown
46 54
98 43
1896
4
12 27.5 E
Medora
46 56
103 32
1906
6
16 34. E
Fayette
47 16
102 56
1906
6
16 41.7 E
Washburn
47 18
101 02
1905
7
, '5 34- 5 E
Hope
47 20
97 43
1905
8
12 21.9 E
Carrington
47 27
99 07
1905
8
13 37- I E
Garrison
47 38
101 26
1906
7
15 14- 7 E
Schafer
47 47
103 13
1906
5
17 03. I E
Grand Forks
47 56
97 02
1905
7
1 11 36. E
Lakota
48 03
98 19
1905
7
' 12 45.5 E
, 17 20. 3 E
Williston
48 09
103 37
1906
5
Minot
48 14
101 16
1905
7
' 15 33- 7 E
Rugby
48 22
99 56
1896
5
; U43.8E
White Earth
48 22
102 46
1906
5
1 16 24. 2 E
Cando
48 30
99 H
1906
5
13 45-5 E
Kenmare
48 40
102 08
1906
5
16 22. I E
Langdon
4846
98 23
1905
7
13 16. 4 E
Mohall
48 46
101 32
1906
5
16 56. 6 E
Bottineau
48 50
100 28
1905
7
15 58. 9 E
RoUa
48 52
99 36
1906
5
14 36. 8 E
Crosby
48 56
103 21
1906
5
17 58. 9 E
Pembma
48 58
97 14
1906
7
11 26. E
Do.
48 58
97 15
1905
7
1 II 28. 8 E
Portal
49 00
102 33
1906.5
' 17 41-5 E
t These observations were made under the joint auspices ol
Carolina Geological Survey (J. A. Holmes, State Geologist). C/
40.7
22.8
51-7
29.8
29. 6
20. 9
08.7
53-3
3
4
4
4
4
5
4
4
'5 38.3
'5 41- 8
r4 26.6
^5 27.9
r4 23. 1
'4 46. 4
'5 IO-3
^5 50.0
^5 38.4
^5 25.5
5 08. I
r6 38.9
r6 15. I
tS 21.2
^5 47-9
'6 04. 6 I
5 39.9 I
r6 20.8
r6 06. 8
6 53.0
'6 26. 9 '
r6 34-6 I
^6 55- o
'5 56.5
7 17. I
•7 17-3
r6 09. 2
c. g. s.
752
688
644
678
679
619
709
644
570
561
679
594
683
648
600
546
558
583
612
469
509
587
540 I
519
560
498
515 I
439
489
477 ■
448 ,
535
396 I
395
520
05 E
04 E
22 E
14 E
07 E
43 E
23 E
II E
08 E
30 E
35 E
30 E
38 E
32 E
20 E
35 E
10 E
59 E
34 E
44E
16 E
31 E
53 E
20 E
42 E
18 E
15 E
53 E
33 E
27 E
38 E
73 40
74 22
74 51
74 29
74 29
75 20
74 08
74 54
75 37
75 41
74 26
75 30
74 22
74 46
75 10
75 50
75 38
75 25
75 07
76 39 !
76 15 I
I 75 20
75 48 j
' 76 07 '
75
39
76
20
76
06
76
53
76
26
76
34
76
54
75
56
77
16
77
17
76
08
c. g. s.
753
688
645
680
680
620
710 I
638
561 I
680 I
591
683 ;
648 I
600 I
546
559 I
584
613
469 ,
509
588 I
540 I;
516 I
560
498 |i
515 ll
439
490 I
477 I,
448 I
535
397
395
520
CS.7
CS.6
CS.7
CS.7
CS.7
CS.7
CS.7
CS.di
CS.7
CS.7
CS.7
CS.di
CS.7
CS.7
CS.6
CS.6
CS.6
CS.7 '
CS.7
CS.6
CS.6
CS.7
CS.6
CS.di
CS.7
CS.6
CS.7
CS.6
CS.6
CS.6
CS.6
CS.7
CL
CS.6
CS.7
the U. S. Coast and Geodetic Survey and the North
App. 9, C. & G. S. Report for 1899, Washington, 1900.
MAGNETIC ELEMENTS IN THE UNITED STATES. 55
Table I. — Observed magnetic elements and the values reduced to January i, 1903 — Continued.
OHIO
Reduced to ioo<
.0
Lati-
^'
Station
tude
tude
Date
1 Source
. N.
W.ofGr.
Ded'n
Incl'n
H. Int.
Ded'n
Ind'n
H. Int.
1
/
/
f
/
c. g, s.
/
/
c. g. s.
South Point
38 25
82 35
1864. I
I 52. 9 E
_..
034W
^_ _ -
CS.d
Ironton
38 32
82 40
1904
6
043.7W
70 36.3
.1996
045W
70 37
• 1995
CS.5
Portsmouth
38 45
82 59
1900
5
2 15. 6 W
70 35- 6
. 2009
2 26W
70 40
• 1997
CS.d2
Gallipolis
38 49
82 14
1904
6
54. oW
70 18.9
. 2029
55W
70 19
.2028
CS.5
West Union
38 49
83 32
1903
3
01. oW
70 06.3
. 2060
05 w
70 08
.2056
CS.3
Georgetown
38 53
83 58
1903
3
25. 6 E
69 59-7
.2080
22 E
70 01
. 2076
CS.3
Jackson
Batavia
39 04
82 37
1903
3
04. 6 W
70 24. 7
.2015
o8W
70 26
. 2010
CS.3
39 06
84 12
1903
3
39. I E
70 II. 9
• 2053 1
36E
70 14
. 2049 i
CS.3
Cincinnati Obsy.
39 08
84 25
1903
3
I 09. E
70 13-
.2052 1
I 06E
70 15
.2048
CS.3
Cincinnati University
39 08
84 30
1907
5
57-4 E
79 17-4 ;
76 12.4 1
. 2048 :
I 02 E
70 15
.2057
CS.7
Waverly
39 09
83 00
X903
3
2 05. 2 W
.2042
2 09W
70 14
.2038
CS.3
HiUsboro
39 14
83 36
1903
3
01.6 E
70 20.7 1
.2028 1
02 W
70 23
.2024
CS.3
McArthur
39 15
82 2d
1904
6
oo.i W
70 32- 5
.2025 ;
02 W
70 33
. 2024
CS.5
Athens
39 20
82 06
1904
6
30. 8 W
70 35-5
.2005 ,
.0 32W
70 36
. 2004
CS.5
Chillicothe
39 20
82 59
1900
5
32. I W
71 31- I
.2025 i
043W
71 35
. 2012
CS.d2
Lebanon
39 24
84 15
1903
4
48. 1 E
70 42.9
.2020
45E
70 44
• 2015
CS.3
Hamilton
39 24
84 32
1903
4
25.6 E
70 36. 5
• 2033
22 E
70 38
. 2028
CS.3
Marietta
39 25
81 28
1904
6
2 08. 6 W
70 51-8
. 1986
2 10 W
70 52
• 1985
CS.5
Marietta
39 25
81 28
1907
5
2 31.2 W
70 57- I
.1987
2 25 W
70 55
.1996
CS.7
Wilmington
39 28
83 '49
1903
4
25.7 E
70 40. 2
. 2017
22 E
70 42
.2012
CS.3
Oxford
39 30
84 44
1903
4
I 30. E
70 56.0
. 2009
I 27 E
70 58
.2005
Sf-3
Logan
39 33
82 24
1904
6
29. 6 W
70 47. 9
.1993
31 w
70 48
.1992
CS.5
Washington
39 34
83 25
1900
5
29. 7 W
70 28.4
. 2026
40W
70 33
.2013
CS.d2
McConnelsville
39 39
8i 50
1904
7
57.6 W
71 07.6
.1992
58W
71 08
. I99I
Si-5
Centerville
39 39
84 ID
1903
4
20. 2 E
70 53-9
.1997
17 E
70 55
• 1993
CS.3
Wilberforce
39 42
83 54
1903
4
01. 2 E
70 58. 2
.1987
02 W
71 00
.1983
CS.3
New Lexington
39 43
82 II
1904
6
55.2 W
71 04.7
.1989
56W
71 05
.1988
CS.5
Caldwell
39 45
8i 31
1904
7
2 14. 1 W
70 55- 5
.1967
2 15 w
70 56
.1966
CS.5
Dayton
39 45
84 16
1905
8
02.9 W
70 59- 8
. 1976
01 W
70 59
.1978
CS.6
Woodsfield
39 46
81 08
1904
7
I 42. oW
70 54- 2
• 1973
I 43 w
70 55
.1972
CS.5
Lancaster
39 46
82 38
1903
9
07. 8 W
70 54- I
.1991
loW
70 55
.1988
CS.4
Eaton
39 48
84 39
1903
6
48. 6 E
70 49. 2
• 2015
46E
70 51
. 2013
CS.4
London
39 57
83 27
1903
4
36. W
71 13.7
• 1956
39 w
71 15
.1951
CS.3
Zanesville
39 58
82 03
1904
7
I 19.4W
71 II. 7
• 1977
I 21 W
71 12
.1976
CS.5
Columbus
39 59
83 01
1900
5
43- 6 W
70 37- 4
. 2021
054W
70 42
.2007
CS.da
Springfield
39 59
83 56
1903
5
ID. 4 E
71 04.3
.1971
07 E
71 06
.1966
CS.3
Troy
40 02
84 06
1903
5
03. 2 W
71 04.6
.1971
06W
71 06
.1966
CS.3
Cambridge
40 03
81 35
1904
7
2 16. 1 W
71 22. 2
.1935
2 17W
71 23
.1934
CS.5
Newark
40 04
82 25
1904
7
04. 7 E
70 56. 9
.1993
04E
70 57
.1992
CS.5
St. ClairsvUle
40 06
80 55
1904
7
I 06.4 W
71 39-7
• 1915
I 07 W
71 40
. I9I4
CS.5
Urbana
40 06
8344
1903
5
21.9 E
71 01.9
•1977
19 E
71 03
.1972
CS.3
Greenville
40 07
84 32
1903
5
52.8 E
71 20. 2
.1966
50E
71 22
. 1962
CS.4
Marysville
40 16
83 23
1903
6
25.8 E
71 29.0
.1948
22 E
71 30
.1944
CS.4
Sidney
40 16
84 08
1903
5
04. W
71 24.8
.1949
07 W
71 26
-1945
CS.4
Coshocton
40 17
81 51
1904
7
2 03. W
71 34-7
.1929
2 04 W
71 35
. 1928
CS.5
Cadiz
40 18
81 02
1904
8
2 02.9 W
71 26.4
. 1922
2 04W
71 27
. 1921
CS.5
Delaware
40 22
82 58
1903
6
40. W
71 28.3
.1958
043W
71 30
• 1953
CS.4
Bellefontaine
40 22
83 46
1900
5
09.3 E
71 22.4
• 1930
01 W
71 27
■ 1915
CS.d2
Steubenville
40 24
80 42
1904
8
I 38. 9 w
72 06.4
. 1872
I 40 W
72 07
. 1871
CS.5
Tuscarawas
40 24
81 24
1900
5
2 15. I W
71 35.8
. 1918
2 27 W
71 40
• 1904 '
CS.d2
Mt. Vernon
40 27
82 31
1903
8
38. 1 W
71 58.1
. 1891
40W
71 59
.1888
CS.4
New Philadelphia
40 28
81 25
1904
7
2 21. 9W
71 40.0
. 1910
2 23 W
71 40
. 1909
CS.5
Millersburg
40 34
81 54
1904
7
2 24. 9 W
71 55.2
. 1891
2 26W
71 55
. 1890
CS.5
Mt. Gilead
40 34
82 48
1903
6
39. 2 W
71 43-5
• 1929
42 W
7» 45
•1924
CS.4
Mt. Gilead, N. M.
40 34
82 49
1903
6
28.9 W
32 W
CS.4
Marion
40 34
83 07
1900
5
32. 7 w
71 40.9
. 1922
44W
71 46
. 1908
CS.d2
Celina
40 34
84 34
1903
5
36. 3 E
71 36.3
•1938
34E
71 38
• 1934
CS.4
Carroll ton
40 36
81 05
1904
7
I 50. 2 W
71 42.2
.1899
I 52 w
71 42
. 1898
CS.5
Wapakoneta
40 36
84 II
1903
5
14. 6 W
71 35.8
. 1930
17 W
71 37
. 1926
CS.4
Kenton
40 40
83 38
1903
6
I 02. 2 E
71 49.7
. 1912
I ooE
71 51
. 1908
CS.4
Lima
40 45
84 02
1903
5
. 25.8 W
71 42.9
. 1921
29 W
71 44
• 1917
CS.4
Lisbon
40 47
80 45
1904
7
; 3 00. w
72 07. I
• 1873
3 01 W
72 07
. 1872
CS.5
Ashland
40 48
82 20
1900
6
i 59. 5 w
72 13.0
.1881
I loW
72 15
.1868
CS.d2
Canton
40 49
81 24
1904
7
2 12. 4 W
72 06.3
.1883
2 13 W
72 07
. 1882
CS.5
Wooster
40 49
81 56
1904
7
: I 33.3 w
71 51.0
• 1915
I 34W
71 51
.1914
i CS.5
Bucyrus
40 49
82 59
1903
6
32.6 w
72 15.5
. 1871
36W
72 17
. 1867
CS.4
Forest
40 49
83 35
1903
6
19. I E
71 59-8
.1897
16E
72 01
. 1892
CS.4
Do.
40 50
83 28
1874
6
2 18. 3 E
72 20.7
. 1894
25E
71 56
.1883
NA.di
Upper Sandusky
40 51
83 18
1903
6
i 028.0W
72 14-7
.1878
31 W
72 16
.1874
. CS.4
56 MAGNETIC TABLES AND CHARTS FOR 1905.
Table I. — Observed magnetic elements and the values reduced to January i, 1905 — Continued.
OHIO— Continued
Station
Mansfield
Van Wert
Ottawa
Findlay
Youngstown
Akron
Tiffin
Medina
Paulding
Ravenna
Do.
Warren
Norwalk
Oberlin
Defiance
Bowling Green
Elyria
Fremont
Berea
Nap)oleon
Lorain
Cleveland (new)
Cleveland
Bryan
Sandusky
Port Clinton
Do.
Maumee
Wauseon
Chardon
Kelleys Island
Put in Bay
Toledo
Do.
Jefferson
Fairport
Conneaut
Reduced to 1905.0
Dccl'n I Incl'n H. Int.
OKLAHOMA
/
/
/
,
c.g.s.
r
/
c.g.s.
Ardmore
34 10
97 09
1905- 9
9 08. 8 E
63 37.0
•2559
9 06E
63 35
. 2563
Antlers
34 15
95 38
1905- 9
8 01.5 E
63 58.9
.2537
7 59 E
63 57
•2541 '
Atoka (new)
34 23
96 09
1905- 9
8 28. 2 E
64 01. 2
.2541
8 26E
63 59
■2544
Atoka, old
34 24
96 09
1905- 9
8 24. I E
64 04. 2
.2535 1
8 22 E
64 02
.2539
Lawton
34 37
98 24
1905-
9 44.9 E
63 57-3
•2538
945E
63 57
.2538
Pauls Valley
34 45
97 14
1905- 9
9 14. 8 E
64 15. I
.2528
9 12 E
64 13
.2532
Talihiva
34 46
95 03
1905-9
8 17. 7 E
64 33- 2
■2507
8 15E
64 31
.2512
Mangum
South McAlester
34 52
99 31
1905.0
10 26. 1 E
63 37- 7
.2566
10 26 E
63 38
. 2566
34 58
95 49
1905.9
8 35. 2 E
64 49. 3
. 2486 1
8 33E
64 48
.2490 1
Poteau
35 03
94 38
1905.9
8 01.9 E
65 01. 8
.2468
7 59 E
65 00
.2472 I
Anadarko
35 04
98 17
1905.0
9 57. 2 E
64 18.7
.2521
9 57E
64 19
.2521 ;
Wewoka
35 08
96 31
1905.9
8 49. 7 E
64 51.6
.2478
847E
64 50
.2482 ,
Eufaula
35 16
95 33
1878.5
9 10. 3 E
8 19 E
____
Tecumseh
35 16
96 57
1905.8
8 55. 7 E
65 II. 6
.2453 1
8 53E
65 10
• 2457
Carson
35 16
97 58
1906.9
, 9 57-3E
64 51.9
.2469
9 53E
64 48
.2477
Cordell
35 18
99 01
1905.0
^ 10 10. 3 E
64 31. I
.2498
10 10 E
64 31
.2498
Oklahoma
35 30
97 34
1905.
9 33- 4 E
65 05. 7
.2458
9 33E
65 06
. 2458
Cheyenne
35 37
99 40
1900.9
10 34. 9 E
64 38. 4
.2491
10 44 E
64 46
.2476
Okmulgee
35 38
95 56
1904.9
8 42.6 E
65 30.9
.2424
8 43E
65 31
.2424
Chandler
35 42
96 52
1905. I
9 23,0 E
65 37.0
•2403
9 23E
65 37
• 2403
Watonga
35 51
98 24
1904. 9
10 oi. 6 E
65 28.0
. 2439 1
10 02 E
65 28
.2439
Guthrie
35 53
97 25
1906.8
i 9 37.5 E
65 40.0
.2414 !
9 33E
65 37
.2421
Tahlequah
35 55
95 00
1904.9
8 26. 4 E
65 52. 5
•2397
8 27 E
65 53
.2396
Wagoner
35 58
95 23
1904. 8
8 12.3 E
65 53.5
.2404
8 13E
65 54
. 2403 1
Sapulpa
36 00
96 07
1904.9
9 II. E
65 47. 6
1. 2416
9 II E
65 48
.2415 1
CS.6
CS.6
CS.6
CS.6
CS.5
CS.6
CS.6
CS.5
CS.6
CS.6
CS.5
CS.6
CS.d
CS.6
CS.7
CS.5
CS.5
CS.d2»
CS.5
CS.5
CS.5
CS.7
CS.5
CS.5
CS.5
MAGNETIC ELEMENTS IN THE UNITED STATES 57
Table I. — Observed magnetic elements and the values reduced to January j, igo^ — Continued.
OKLAHOMA— Continued
'
Observed
Reduced to zooj;.o 1
Lati-
tude
tude
1
Source
N.
W.ofGr.
Ded'n
Incl'n
H. Int.
Ded'n
Ind'n
H.Int.
/
/
/
f
c. g. s.
1 o /
/
c. g. s.
Perry
36 16
97 20
1901.6
9 12.9 E
65 42. 5
1 9 22 E
65 49
__ - _
CS.d2
Claremorc
36 19
95 38
1904.8
8 34- 8 E
66 09.3
.2381
8 35 E
66 09
.2381
S!-5
Enid
36 24
97 55
1904.9
9 51-2 E
65 49.4
.2413
9 52E
65 50
.2412
CS.5
Woodward
36 27
99 23
1900.9 ,
10 52.5 E
65 45-
. 2410
II 02 E
65 52
.2397
CS.d2
Vinita
3^ 39
95 09
1904.8 j
8 21.7 E
66 38. 3
• 2356
8 22E
66 39
•2355
CS.5
Pawhuska
36 40
96 22
1904.9 1
9 01. oE
66 28. 3
.2366
9 01 E
66 28
.2366
CS.5
Pond Creek
36 40
97 48
1906.8 i
10 08. 7 E
66 16.7
.2374
lo 05 E
66 14
.2380
CS.7
Guymon
36 43
10 1 30
1902.7
II 42.9 E
65 28.6
. 2426
II 50 E
65 33
.2419
CS.3
Alva
36 48
98 41
1904.9
10 35. 2 E
66 14. I
• 2387
10 36 E
66 14
.2387
CS.5
Beaver
36 49
100 30
1900.9
10 58. 6 E
65 45- I
.2404
II 09 E
65 52
•2393
CS.d2
Newkirk
36 54
97 04
1904.9 ,
9 22.0 E
66 31.6
■ 2346
9 22 E
66 32
.2346
CS.5
OREGON
F
McDermitt
42 00
Denio
42 00
Lakeview
42 II
Klamath Falls
42 13
Jacksonville
42 18
Bly
42 23
Plush
42 26
Andrews
42 27
Paisley
42 42
Fort Klamath
42 42
Ewing Harbor
42 44
Canyonville
42 54
Diamond
43 00
Silver Lake
43 07
Loggie
43 21
Ross
43 ^i
Fossil 2
43 21
Coos River
43 22
White Point 2
43 22
Marshfield Hill
43 22
Pigeon 2
43 22
North Spit
43 22
Crawford 2
43 23
Pierce
43 24
Cemetery
43 24
Empire 2
43 24
Pest
43 24
Simpson
43 25
North Bend 2
43 25
Ponv
43 25
Hutchinson 2
43 25
Mabry
43 26
North Slough
43 26
Oakland
43 26
Burns
43 35
Rosland
43 42
Ten-mile Knoll
43- 53
Cannery Hill
44 00
Eugene
44 03
Paulina
44 08
Sisters
44 17
Prineville
44 19
Canyon City
44 23
Mary Peak
44 31
Mitchell
44 32
Yaquina
44 36
Albany
44 39
Yaquina Point L. H.
44 40
Detroit
44 43
Sumpter
44 45
Baker
44 48
117 46
1906.7
118 40
1906.7
120 21
1906. 8
121 46
1906. 8
122 57
1906.4
121 02
1906. 8 ,
"9 54
1906.8 1
118 38
1906.7
120 38
1906. 8
121 59
1906.3
124 30
1851.9
123 18
1881.6
118 42
1906.7 1
121 07
1906.9
124 10
1889.7 ;
124 II
1889.7 !
124 19
1889. 9
124 10
1889.7 ;
124 12
1889. 8
124 14
1889.8
124 19
1889.9
124 20
1889.9
124 12
1889. 7
124 12
1889.7
124 17
1889.9 I
124 17
1889.9 !
124 18
1889. 9
124 14
1889. 8
124 14
1889. 7
124 16
1889. 8
124 17
1889.9 1
124 13
1889.7
124 15
1889.8 1
123 18
1881.6
119 04
1906.7
121 35
1906.9
124 09
1887. 5
124 07
1887. 5
123 04
1906.4
119 54
1906. 6
121 34
1906. 6
120 52
1906. 6
118 58
1906. 6
123 29
1877.8
120 09
1906.6
124 01
1906.5
123 02
1881.6
124 04
1885. 3
122 08
1906.5
118 13
1905.6
117 50
1905.6 ,
18 54. 6 E
18 50. 2 E
20 48. o E
19 45. 4 E
19 59. 6 E
21 06. 4 E
20 51- 7 E
20 47. 6 E
21 05.0 E
20 17.0 E
18 29.7 E
17 48. 5 E
18 3I-8E
20 01. oE
20 35 E
20 31
20 16
20 06
19 07
18 06
20 06
20 II
19 21
17 28
20 03
20 01
20 06
19 II
18 44
19 45
19 59
18 33
19 37
19 41
20 58. 5 E
21 29. o E
20 52 E
21 24 E
22 13.5 E
21 45- 2 E
20 40. 8 E
21 12.5 E
19 42. 9 E
20 51.7 E
21 23. 2 E
21 13. 8 E
21 42.0 E
20 50. 6 E
21 14. 6 E
20 46. 6 E
20 53. 4 E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
2E
/
c. g. s.
/
/
c. g. 5.
67 00.3
.2249
18 49 E
66
59
.2250
CS.7
66 47. 6
. 2265
18 44E
66
47
. 2267
CS.7
66 18.9
.2286
20 41 E
66
19
. 2287
CS.7
66 08. 6
. 2289
19 39 E
66
09
. 2290 ;
CS.7
65 59-5
. 2291
19 54 E
66
00
. 2292
CS.6
66 38. 9
.2268
21 00 E
66
39
. 2270
CS.7
67 05. 2
.2251
20 45 E
67
05
.2252
CS.7
66 42. 6
.2268
20 42 E
66
42
. 2270
CS.7
67 06.6
. 2218
20 58 E
67
07
. 2220
CS.7
66 21.6
. 2263
20 10 E
66
22
.2265
CS.7
_
20 17 E
_
CS.d
65 57.9
18 34 E
65
41
CS.di
68 38.0
.2115
18 26 E
68
38
. 2117
CS.7
67 10.7
.•2220
19 54 E
67
II
. 2222
CS.7
21 13E
CS.d
__
21 09 E
__
CS.d
20 54 E
_.
__
CS.d
__
20 44 E
.
CS.d
__
19 45 E
__
__
CS.d
18 44 E
__
__
, CS.d
__
20 44 E
__
__
1 CS.d
20 49 E
CS.d
._
19 59 E
CS.d
__
18 06 E
_.
_.
CS.d
20 41 E
CS.d
^
20 39 E
__
CS.d
__
20 44 E
__
__
CS.d
_ _
19 49 R
--
CS.d
1
19 22 E
__
CS.d
__
20 23 E
CS.d
1 20 37 E
__
__
CS.d
19 II E
CS.d
_ _
20 15 E
.
__
' CS.d
66 59.4
20 27 E
66
42
CS.d I
68 09. I
■2177
20 52 E
68
09
. 2178
CS.7
67 20. 6
.2197
21 22 E
67
21
. 2198
CS.7
_
21 31 E
__
._
CS.d
22 02 E
__
CS.d
67 37-8
.2186
22 08 E
67 38
. 2187
CS.6
68 20.7
■2149
21 39 E
68
21
■2149
CS.7
67 58.6
• 2115
20 35 E
67
59
. 2116
CS.7
68 38. 6
.2111
21 07 E
68
39
. 2112
CvS.7
68 34.9
. 2176
19 37 E
68
35
. 2176
CS.7
21 40E
CS.d
68 30. 2
. 2126
21 17 E
68
31
. 2126
CS.7
67 49. 8
. 2156
21 08 E
67
50
. 2156
CS.6
68 08. 5
•2174
22 26 E
67
52
•2153
CS.d I
21 31 E
■
CS.d
68 12.8
• 2125
21 09E
68
13
. 2125
CS.6
69 1 1 . 8
. 2084
20 44 E
69
12
.2085
CS.6
69 13- 4
. 2081
i 20 51 E
69
13
. 2081
CS.6
58 MAGNETIC TABLES AND CHARTS FOR 1905.
Table I. — Observed magnetic elements and the values redticed to January 7, 1^03 — Continued.
OREGON— Continued
Observed
1
Reduced to looi!
.0
.
Lati-
tude
Longi-
tude
Date
1
1
Souice
N.
W.ofGr.
Ded'n
Ind'n
H. Int.
Ded'n
Ind'n
H. Int.
f
/
/
/
c. g. s.
/
/
c. g, s.
Salem
44 56
122 58
1881.6
19 58. oE
68 13.3
.2168
20
42 E
67 56
.2147
CS.di
Shaniko
45 00
I20 44
1906.5
21 23. 4 E
69 43.2
.2025
21
18 E
69 43
.2025
CS.7
McMinnville x
45 "
123.13
1906.5
21 45- 4 E
68 24.8
.2132
21
40 E
68 25
.2132
CS.6
Union
45 12
"7 53
1905.6
20 52. 2 E
69 41. I
•2057
20
50 E
69 41
•2057
CS.6
Alba
45 12
118 55
1906.6
21 14.5 E
69 34.8
. 2041
i ^'
09E
69 35
. 2042
CS.7
Condon
45 H
120 II
1906.5
20 28. 4 E
69 31- 9
. 2056
' 20
23 E
69 32
.2056
CS.7
Tygh Valley
45 14
121 03
1906.5
21 09.4 E
68 49. 6
• 2105
1 21
04E
68 50
2105
CS.7
Estacada
45 16
122 23
1906.5
21 52. 6E
68 42. I
. 2128
1 21
47 E
68 42
. 2128
CS.6
Heppner
45 20
"9 33
1906.6
21 53. 6 E
69 40. 9
. 2009
; 21
48 E
69 41
. 2009
CS.7
Moro
45 29
120 41
1906.5
21 54- 4 E
69 12.0
. 2064
, 21
49 E
69 12
.2065
CS.7
Portland, Custom H.
45 31
122 41
1895. 2
22 24. 5 E
69 31.5
.2043
22
54 E
69 26
. 2042
CS.di
Portland
45 31
122 42
1905.6
22. 43. 9 E
68 39.0
■2175
22
42 E
68 39
.2175
CS.6
Elgin
45 33
"7 56
1905.6
21 18. 9 E
70 00.9
. 2028
' 21
17 E
70 01
. 2028
CS.6
Three-mile Creek
45 35
121 09
1906.5
22 25. oE
69 28.5
. 2060
, 22
20 E
69 29
. 2060
CS.7
Do.
45 35
121 09
1881.8
21 02.8 E
.2062
1 21
48 E
.2043
CS.di
The Dalles
45 35
121 13
1860.4
20 37 E
69 41.8
. 2104
22
03 E
69 32
.2053
CS.dit
Do.
45 35
121 13
1906.5
22 03. 8 E
69 22. 5
.2046
' 21
59 E
69 23
. 2046
CS.7
Pendleton
45 40
118 47
1906.6
21 51.2 E
69 23.3
.2079
1 21
46 E
69 23
.2079
CS.7
Blalock
45 44
120 22
1881.8
20 21. 2 E
.2073
1 21
ooE
•2054
CS.di
St. Helen
45 52
122 48
1881.6
19 08. oE
70 54. I
.2006
1 '9
55 E
70 40
.1989
CS.di
Umatilla
45 55
119 20
1906. 6
21 45. 5 E
69 58- 7
.2023
' 21
40 E
69 59
.2023
CS.7
Do.
45 57
119 20
1881.8
21 32.2 E
70 10. 2
.2038
' 22
iiE
70 04
. 2020
CS.di
Rainier
46 05
122 56
1886.5
23 45o,E
• 1994
1 24
27 E
. 1988
CS.di
Astoria
46 12
123 50
1881.6
22 26.4 E
69 13-4
.2079
23
15 E
68 59
.2065
CS.di
PENNSYLVANIA
/
/
189I.8
/
"' i
c. g. s. 1
f
t
c. g. s.
Mason & Dixon Line
39 43
79 29
3.47.5 w
70 55.0
1995 1
4 loW
70 57
• 1979 1
CS.d2
Gettysburg
39 52
77 14
1901. 8
4 53.4 W
71
00.4 ;
1959
504W
71
01
• 1951 1
CS.d2
Uniontown
39 54
79 43
1901.9
3 39. I W
71
13- 9 1
. 1956 '
348W
71
16
. 1946
CS.d2
Waynesburg
39 54
80 10
1902.5
3 03.5 W
71
II. 5 .
. 1973 1
3 13 W
71
13
• 1965
CS.3
Westchester
39 55
75 35
1901. 8
7 23.2 W
71
07.3 1
1944 1
7 34W
71
08
.1937
CS.d2
Chambersburg
39 56
77 39
1900.4
4 42.9 W
71
12.6
■ 1948
458W
71
14
• 1940
CS.d2
Philadelphia
39 57
75 12
1905.8
7 450W
71
03.7
• 1936 ,
7 42 W
71
04
.1938
CS.6
Yard
39 58
75 23
1854. 8
6 42.3 W
73
01. 2 1
• 1787 ,
9 50W
72
03
• 1814 ,
CS.di
York
39 59
76 45
1901.8
6 17.9 W
71
16. 1
■ 1933 ,
6 29W
71
16
. 1929 1
CS.d2
Bedford
40 00
78 31
1902.6
4 30.0 W
71
14.8 i
. 1948 !
437W
71
16
. 1944
CS.3
Johnson Tavern
Somerset
40 00
79 48
1862.6
I 13. 6 W
71
57.0
. 1920 j
4 ooW
71
04
• 1940 i
CS.di
40 01
79 05
1902.6
4 36.4 W
71
16.7
• 1951 1
444W
71
18
• 1945
CS.3.
Lancaster
40 03
76 18
1901.7
. 6 16. 2 W
71
08.0 1
• 1936 1
6 27 W
71
09
. 1928
CS.d2
Fannettsburg
40 03
77 48
1900.4
4 59.7 W
71
18.5 '
• 1943 ,
5 15 W
71
20
■ 1935 1
CS.d2
Greenfield
40 06
79 52
1874-6
2 02. 2 W
71
58.9 I
• 1930
344W
71
20
• 1925
NA.di
Bristol, Vanuxem
40 07.
74 53
1846. 5
4 27.8 W
72
22.3
.1875
752W
71
23
. 1891 1
CS.di
Hatsboro
40 II
75 05
1900.5
7 26. 2 w
71
28.7
. 1918
7 42 W
71
29
. 1910 1
CS.d2
Washington
40 II
80 16
1901.9
3 22.8 W
71
46.7
. 1916
331W
71
48
• 1905 1
CS.d2
Carlisle
40 13
77 12
1901.8
5 19.7 W
7t
39- 1
.1919
5 30 W
71
40
■ 1913
CS.d2
Harrisburg (new)
40 15
76 53
1907.4
6 40. 7 W
71
43.9
.1893
634W
71
43
.1897
CS.7
Harrisburg
40 16
76 53
1901.8
6 25.0 W
71
40.0
. 1902 1
6 36W
71
41
.1897
CS.d2
Doylestown
40 17
75 10
1905.8
7 195 W
71
33.4
1906 1
7 17 W
71
33
. 1906 i
CS.6
Greensburg
40 17
79 34
1901.8
4 06. 4 w
71
36.8
■ 1913 1
4 16 W
71
38
■ 1904
CS.d2
Reading
40 18
75 56
1900.5
5 26. W
71
42.6
1900 1
5 41 W
71
43
. 1891
CS.d2
Lebanon
40 21
76 25
1901.8
6 34. 7 W
71
30.9
■1908 1
6 46W
71
31
.1903
CS.d2
Andersonburg
40 21
77 27
1900.5
4 36.0 W
71
35-3
1915 !
452W
71
36
. 1908
CS.d2
Newport
40 27
77 07
1900.5
6 02. 8 W
71
55.1
1880 !
6 18 W
71
56
• 1873 1
CS.d2
Huntingdon
40 29
78 01
1900.5
5 29. W
71
35.9
1920 '
5 44 W
71
38
. 1912
CS.d2
Ebensburg
40 29
78 44
1901.8
4 27.3 W
71
44.5 1
1891
438W
71
46
. 1886
CS.d2
Allegheny
40 29
80 01
1907.4
4 08.9 w
72
04.4
1868 I
403W
72
02 1
.1877
S|7
Allegheny (new)
40 29
80 01
1907.4
4 09. w
72
09.2
1
403W
72
07 1
CS.7
Altoona
40 31
78 23
1900.5
5 06. 4 W
71
44-3
1917 '
5 21 W
71
46
. 1910
CS.d2
Allentown
40 36
75 30
1902.7
6 20. 7 W
72
19.2
1845
6 28 W
72
19
. 1842
CS.3
Lewistown
40 36
77 34
1900.5
5 19- 7 W
71
52.7
1887
5 34 W
71
54
. 1880
CS.d2
South Bethlehem
40 37
75 23
1874.5
5 19-5 W
73
38.9
1770
7 08 W
72
56
. 1780
CS.di
Economy
40 37
80 16
1840.6
72
35-
1848
_ - -
71
56
.1888
CS.i
Indiana
40 39
79 12
1901.9
4 02.0 w
71
52.6
1895
4 II W
71
54 '
.1887
CS.d2
t Boundary Survey; R. W. Haig, observer; Phil. Trans. R. S. 1864.
MAGNETIC ELEMENTS IN THE UNITED STATES. 59
Table I. — Observed magnetic elements and the values reduced to January j, 1905 — Continued.
PENNSYLVANIA— Continued
Station
Pottsville
Easton
Beaver
Westover
Middleburg
Ingleby
Kittanning
East Mauch Chunk
Butler
Bellefonte
Lewisburg
Danville
East Stroudsburg
Curwensville
Bloomsburg
Newcastle
Clearfield
Bushkill
Lockhaven
Brookville
Clarion
Wilkes-Barre
Mercer
Willtamsport
Keating
Sharpsville
Milford
Scranton
Rocky Grove
Ridgway
Satterfield
Slate Run
Tionesta
East Emporium
Tunkhannock
Honesdale
Penbryn
Elulalia
Meadville
VVellsboro
Towanda
Coudersport
Smethport
Montrose
Warren
Silver Lake
Erie
Do.
Lati-
tude
N.
40 41
40 42
40 44
40 45
40 48
40 49
40 49
40 52
40 53
40 55
40 57
40 58
longi-
tude
W.ofGr.
40 59
40 59
41
00
41
01
41
03
41
07
41
09
41
10
41
12
41
13
41
>3
41
14
41
16
41
17
41
19
41
24
41
24
41
25
41
29
41
29
41
30
41
31
41
32
41
35
41
35
41
35
41
37
41
46
41
47
41
47
41
48
41
50
41
50
41
56
42-09
42
09
Date
76 12
75 16
80 19
78 44
77 03
77 26
79 31 I
75 45 ,
79 56
77 47
76 53
76 37
75 II
78 33
76 27
80 21
78 26
75 00
77 26
79 06
79 24
75 54
80 14
77 02
77 57 I
80 27 I
74 48
75 39
79 50
78 48
76 24 I
77 32 I
79 27
78 14 i
76 00 I
75 15
76 54 I
79 00
80 07
77 18
76 32
78 02
78 29
75 53 I
79 09 I
75 57 I
80 05
80 05
[900.5
[902.7
[874.6
[902.8
901. 8
[900.5
902. 5
[902. 8
[902.5
901.8
[900.5
902,8
902.7
[902.8
902. 8
[902.9
[901.8
841.5
[901.8
902. 8
[902. 8
[902.8
902.9
[901. 8
902. 8
[874.6
[902.7
902.7
[902.9
[902. 8
902.8
[902. 8
902.9
[902.8
[902.8
902.7
[902.8
902.8
902. 9
[902. 8
902. 8
902.8
902. 8
902,8
902. 8
902. 8
885. 7
903.7
Observed
Dccl'n
6 48.
7 II.
I 08.
4 37.
6 05.
6 10.
27.
03.
04.
53.
15.
48.
18.
12.
57-
55-
54.
24.
II.
40.
24.
59.
48.
46.
00.
57.
55.
09.
40.
31.
44.
48.
59-
51-
8 29.
6 52.
45-
05.
52.
45-
35-
47.
23-
34-
18.
08.
24.
oW
oW
2 W
7 W
8 W
W
6 W
oW
2 W
8 W
1 W
o W
4 W
5W
8 W
4 W
7 W
o W
5 W
8 W
oW
8 W
4W
7 W
o W
W
9 W
4W
3 W
3 W
3 W
1 W
8 W
6W
6\V
9 W
6 W
2 W
4 W
4 W
8 W
2 W
o W
4 W
4 W
2 W
4W
Incl'n
I 51.5
I 52.9
31.5
00. 6
01. 2
53.3
II. 8
16.5
56.6
01. o
03.0
II. 4
39.8
II. 6
09. 6
09.3
12. I
31.4
07. 2
23.5
22. 6
17.9
16.8
05.5
30.9
50.7
00.0
26.6
40.9
34.4
26.9
39-6
32.0
46.5
37.2
37-6
35.2
00. I
39-4
56.6
49.4
49.6
55.8
45.9
45.7
54.9
24-3
H. Int.
Reduced to 1905.0
Ded'n
g.s,
^11
886
870
882
869
888
854
839
886
881
868
856
812
864
855
864 I
863
783
866
848
845
839
860
870
836
845
784
825
835
832
837
820
836
806
814
809
834
794
830
792
804
804
799
801
810
790
762
Incl'n
o f
7 03 W
7 19W
2 58 W
445W
6 16W
6 24W
3 35 W
7 loW
4 II W
6 04 W
6 30 W I
6 55 W
7.25 wl
5 2oW;
7 06 W
3 02 W
5 05 VV
6 35 W
4 18W
3 47 W
7 32 W I
3 06W
7 ooWl
5 54 W
2'57W
8 06W
8 03 W
4 16W
5 48 W
7 40W
5 52 W
4 54W
5 08 W
8 ooW
8 36W
7 01 W
3 52 W
4 12 W
6 ooW
7 53 W
5 44W
5 55 W
8 30W
441 w
8 27 W
4 18 W
4 27W
H. Int.
Source
g.s,
870
882
866
878
864
881
847
835
879
876
861
853
809
861
851
856
858
805
861
844
840
836
853
865
833
857
781
824
829
828
836
817
832
802
813
809
833
790
826
791
803
801
796
800
807
789
776
CS.d2
CS.3
NA.di
CS.3
CS.d2
CS.d2
CS.3
CS.3
CS.3
CS.d2
CS.d2
CS.3
CS.3
CS.3
CS.3
CS.3
CS.d2
CS.i
CS.d2
CS.3
CS.3
CS.3
CS.3
CS.d2
CS.3
NA.di
CS.3
CS.3
CS.3
CS.3
CS.3
CS.3
CS.3
CS.3
CS.3
CS.3
CS.3
CS.3
CS.3
CS.3
CS.3
CS.3
CS.3
CS.3
CS.3
CS.3
CS.di
LS.3E
RHODE ISLAND
/
r
/
/
c. g. s.
/
t
c.g.s.
Watch Hill
41 19
71 51
1847. 7
7 33.4 W
_
10 56 W
--
CS.d
Point Judith
41 22
71 29
1847. 7
i 8 59. 7 W
73 45. I
. 1746
12 15 W
72 27
. 1827
CS.di
Boston Neck
41 27
71 26
1899. 6
II 38.4 w
72 47.5
.1769
II 58 w
72 40
• 1772
CS.d2
Kingston
41 29
71 32
1904. 7
II 40. W
72 37.7
. 1786
II 40 w
72 37
. 1786
CS.5
Newport
41 30
71 20
1906. 6
12 20. 9 w
72 40. 7
. 1780
12 16 W
72 43
.1779
CS.7
McSparran
41 30
71 27
1899. 7
II 51.6 w
72 36.6
. 1764
12 II W
72 30
. 1767
CS.d2
Bristol
41 39
71 16
1904. 6
12 09. 7 W
72 48. 6
. 1776
12 II W
72 48
. 1776
CS.5
East Greenwich
41 40 71 27
1904.6
12 18. I W 72 42. 9
.1773
12 20 W
72 42
. 1773
CS.5
Spencer
41 41 71 30
1844. 6
9 05.9 W 75 07. I
12 30 W
73 50
CS.di
Providence
41 46
71 28
1904. 6
12 06.5 W
72 46. 6
■ 1770
12 08 W
72 46
• 1770
CS.5
Beaconpole
42 00
71 27
1844.8
9 27.0 w
74 21.9
12 53 W
73 02
1
CS.di
6o MAGNETIC TABLES AND CHARTS FOR 1905.
Table I. — Observed magnetic elements and the values reduced to January i, igo$—Caotm\xtA,
SOUTH CAROLINA
Yankton
Freeman
Hot Springs
Sioux Falls
Mitchell
Interior
Custer
Chamberiain
Steams
Murdo
Presho
Creston
Howard
Rapid City
Observed
Reduced to iqojc
.0
.
Lati-
Longi-
tude
station
^ttide
Date
Source
N.
W.ofGr.
Decl'n
Incl'n
H. Int.
Decl'n
Incl'n
H. Int.
Graham, Hilton
/
32 13
/
80 46
1870. 2
/
1 55-5 E
/
63 28. I
.2604
/
02 w
/
63 15 1
eg, 5.
-2535
CS.di
Head I.
Port Royal
32 18
80 38
1859- I 1
3 04. I E
64 07. 5
25E
63 48
CS.di
Woods
32 23
80 41
1902.3 1
26. 5 E
63 37. 8
.2522
23E
63 43
• 2513
CS.d2
Beaufort
32 26
80 41
1904. I
23. 1 E
63 39- 2
•2519
22 E
63 41
.2515
CS.4
Bay Point
32 30
80 20
1902.2 1
I 38. 3 W
64 12.9
-2495
1 42 w
64 18
.2484
' CS.d2
Edisto 1., east base
32 33
80 14
1850.3
2 53. 6 E
64 04. I
- 2593 1
10 w
63 38
.2497
CS.di
Charleston
32 46
79 49
1902.3
32.9 W
64 08. 3
. 2496
38W
64 13
• 2487
CS.d2
Hampton
32 53
81 07
1903.4
35.3 E
64 18.0
.2488
34E
64 21
.2482
CS.3
Walterboro
32 54
80 40
1904. I
19- 3 H
64 32.9
■ 2458 i
I8E
64 35
• 2455
CS.4
Live Oak
33 03
79 31
1902.3 1
30. 6 W
64 25. I
. 2468 ;
36 w
64 29
.2459
CS.d2
Moncks Corner
33 II
80 01
1904. I
34- 2 W
64 38.4
■2447 i
36 w
64 40
.2444
CS.4
St. George
Barnwell
33 II
80 34
1904.1
00. 2 W
64 30. 4
•2459 '
02 w
64 32
.2456
CS.4
33 15
81 23
1904. I
1 32.9 E
65 13.2
•2395 ,
I 32 E
65 15
.2392
CS.4
Bamberg
33 17
81 02
1904. I
175 E
65 04. 2
. 2411 '
16E
65 06
. 2408
CS.4
AUston
33 22
79 17
1854-
2 06. 5 E
65 29.5
.2508 :
57 W
64 59
.2440
1 CS.di
Georgetown
33 23
79 17
1904. I
50. 9 W
65 03. 3
- 2420 1
053W
65 05
.2417
1 CS.4
Orangeburg
33 31
80 51
1903. 4
12. 7 E
65 06.9
.2417
loE
65 10
.2412
i Sf-3
Aiken
33 34
81 43
1904. I
33- 7 E
65 13- 1
-2407 !
32 E
65 15
.2404
CS.4
Kingstree
33 40
79 49
1904. I 1
36. 5 W
65 35- 2
. 2386 i
38 W
65 37
.2383
1 CS.4
Manning
33 43
80 13
1904. I
22. 9 \V
65 22.0
. 2410
25 W
65 23
-2407
CS.4
Conw^ay
33 51
79 03
1904. I 1
I 13- 7 W
65 33. 2
• 2378 ,
I 15 w
65 35
-2375
CS.4
Sumter
33 56
80 20
1903.4 1
17. 2 \V
65 43- 2
.2372 1
20 W
65 46
.2367
CS.3
Columbia
34 00
81 02
1905.9 '
00. 2 E
65 35-
.2379
02 E
65 34
.2382
CS.6
Marion
34 II
79 24
1904.0
I 09. 4 \V
66 00. 2
• 2343 ,
I II W
66 02
.2340
CS.4
Florence
34 II
79 45
1903- 4
36. 3 W
65 59-8
- 2348 1
39 W
66 02
.2343
CS.3
Greenwood
34 II
82 08
1905- 3
18. 2 E
65 45-5
- 2354 1
18 E
65 45
• 2355
CS.5
Camden
34 13
80 37
1905-9
44. 9 W
65 25.0
.2369 i
043W
65 24
-2372
CS.6
Newberry
34 17
81 37
1905-3
37-2 E
65 29. 1
•2415 1
38 E
65 29
. 2416
Si-5
Darlington
34 19
79 52
1904.0
32. 7 w
66 10. 9
.2341
035W
66 13
.2337
CS.4
Anderson
34 30
82 40
1905.3
37-8 E
65 53-7
.2376
38 E
65 53
• 2377
Sf-5
Bennettsville
34 37
79 42
1904.
1 07. 3 W
66 •11.5
.2327
I 09 W
66 13
.2323
i CS.4
Lancaster
34 42
80 48
1905- 9
57- oW
66 19.7
.2320
55 \y
66 18
-2323
1 CS.6
Union
34 43
81 36
1905-3
01.4 E
65 37-6
.2404
02 E
65 38
-2405
1 CS.5
Walhalla
34 47
83 03
1905.2
57-8 E
66 10.4
.2362
58 E
66 10
-2363
CS.5 •
Green
34 49
82 14
1896.9
15.9 E
_
04 w
_ _ _ _
CS.d
Baker
34 51
82 13
1896.9
09. 6 E
_
10 W
_ _ _ _
1 CS.d
Pelham
34 52
82 13
1896.9 1
17- 7 E
65 54-9
-2378
02 W
66 04
• 2355
1 CS.d2
Pickens
34 53
82 42
1905- 3
15.3 E
66 16.3
• 2349
16 E
66 16
• 2350
CS.5
Geers
34 57
82 13
1896.9 1
06. 5 E
65 58. 7
.2378
13 w
66 08
• 2355
CS.d2
Spartanburg
Wofford College
34 58
34 58
81 56
81 56
1905- 3 1
1896.9 ,
1 1 . 4 W
04. 3 E
66 18. I
66 02.4
.2340
.2366
II W
15 w
66 18
66 II
-2341
■ 2343
CS.5
CS.d2
Flint Rock
34 59
82 13
1896.9 1
03. 2 E
66 00.0
- 2377 1
16W
6609
-2354
CS.d2
Yorkville
35 00
81 17
1906. !
27.3 E
66 37-8
. 2289 1
29 E
66 36
. 2292
CS.6
Gold Mine
35 02
82 13
1896.9 1
25.8 E
66 17.7
- 2356
06 E
66 27
• 2333
CS.d2
Gowensville
35 07
82 13
1896.9 I
33-4 E
66 13.8
.2361
15 E
66 23
.2338
CS.d2
Talent
35 09
82 13
1896.9
05.4 E
66 17.0
-2357
14 W
•66 26
• 2334
CS.d2
Block House
35 12
82 13
1896.9
16. 8 E
66 19.8
.2348
02 W
66 29
• 2325
CS.d2
SOUTH DAKOTA
42 52
43 19
43 26
43 33
43 42
43 43
43 47
43 49
43 50
43 54
43 55
43 55
44 01
44 05
97 24 ;
97 27 '
103 29 1
96 44 ,
98 01
,101 57 I
103 34 ,
I 99 19 I
iioi 18 !
1 100 43
iioo 04
102 40 I
97 32
I103 12
1905
1906,
1905
1900,
1896
1906,
1906
1905
1906
1906
1906
1906,
1906,
1906
II 17. 2 E
10 40. 3 E
15 07.0 E
11 24. 8 E
11 40.3
14 13-9
15 23.0
12 33.6
13 46. 1
13 33-9
12 50.9
14 43. 8 E
10 51.7 E
15 18. 9 E
72 53-7
72 37.8
71 26. 2
72 40.9
73 02.8
72 01. 2
71 42.4
72 29.3
72 12.8
72 12.7
72 30.3
72 04. 7
73 06. 9
71 57.6
c. g. s.
. 1819
1859
1950
, 1828
1830
1904
1924
1868
1888
1887
1867
1894
1808
1909
II 16 E
10 37 E
15 06 E
11 32 E
11 46 E
14 10 E
15 19 E
12 32 E
13 43 E
13 30 E
12 48 E
14 40 E
10 48 E
15 16 E
/
1
c. g. s. 1
72 53
. i8^o '
72 36
. 1 861
71 26
• 195 1
72 44
. 1823 1
73 08
. 1816 j
72 00
. 1906 '
71 41
. 1926 1
72 29
.1869 1
72 II
. 1890
72 II
. 1889 !
72 29
.1869 1
72 03
. 1896 1
73 06
. 1810
71 56
. 1911 !
CS.6
CS.7
CS.6
CS.d2
CS.di
CS.7
CS.7
CS.6
CS.7
CS.7
CS.7
CS.7
CS.7
CS.7
MAGNETIC ELEMENTS IN THE UNITED STATES. 6l
Tabids I. — Observed magnetic elements and the values reduced to January i, 1905 — Continued.
SOUTH DAKOTA— Continued
Observed
Reduced to looj;
.0
SUtkm
Lati-
tude
Longi-
tude
Date
N.
W.ofGr.
Dccrn
Incl'n
H. Int.
Decl'n
Incl'n
H. Int.
/
/
/
/
c. g. 5.
/
/
c. g. s.
Huron
44 21
98 14
1900.7
II 08. 2 E
73 07. 5
. 1814
II 16 E
73 II
. 1809
CS.d2
Pierre (new)
44 22
100 21
1906
7
13 01.9 E
72 58.0
. 1824
12 58 E
72 57
.1826
CS.7
Pierre
44 22
100 22
1906
7
13 03- I E
72 53.6
•1835
13 00 E
72 52
■1837
CS.7
Highmore
Vale
44 30
99 26
1906
7
12 25.5 E
73 OI-9
.1826
12 22 E
73 01
.1828
CS.7
44 37
103 23
1906
6
15 57- 1 E
72 24.2
.1876
15 54 E
72 23
.1878
CS.7
Belle Fourche
44 41
103 52
1906
7
15 46. 6 E
72 20. 6
.1867
15 43 E
72 19
.1869
CS.7
Walertown
44 53
97 06
1906
6
, 10 18.0 E
74 08. 7
.1724
10 15 E
74 07
. 1726
CS.7
Redfield
44 53
98 31
1900
7
12 58. oE
74 02.8
.1719
13 06 E
74 06
.1714
; cs.d2
Gettysburg
45 02
99 58
1900
7 1
12 59.8 E-
73 26.6
.1775
13 08 E
73 30
. 1770
CS.d2
Bixby
45 09
102 34
1906
6
15. 12.8 E
73 08. I
. 180I
15 09 E
73 07
. 1803
CS.7
Chance
45 24
102 17
1906
6
15 49- 2 E
73 x6.8
•1795
15 46 E
73 16
•1797
CS.7
Harding
45 24
103 50
1906
6
15 50- 3 E
73 02. 8
.1806
15 46 E
73 02
.1808
CS.7
Roscoe
45 27
99 22
1906
7
12 48. X E
73 58.9
.1725
12 44 E
73 58
.1727
CS.7
Preacher Hill
45 28
97 06
1906
6
10 59-5 E
74 24. 7
.1689
10 57 E
74 23
. 1691
CS.7
Aberdeen
45 28
98 29
1896
4
12 17.8 E
74 09. I
. 1728
12 24 E
74 12
. 1714
CS.di
Selby
45 31
100 03
1906
7
13 33-9 E
74 08.9
.1715
13 30 E
74 08
. 1716
CS.7
Reva
45 32
103 XI
1906
6
15 59- oE
73 20.8
.1784
15 56 E
73 20
.1785
CS.7
Eureka
45 46
99 31
1905
5
13 31.1 E
74 11. 4
. 1706
13 30 E
74 II
.1707
CS.6
Seim
45 46
102 12
1906.6 1
15 39. I E
73 42.9
•1756
15 35 E
73 42
.1758
CS.7
TENNESSEE
/
/
,
/
c.g.s.
/
/
c.g.s.
1
Chattanooga
35 01
85 18
1900.4 1
I 27. 8 E
65 52. I
. 2420
I 22 E
65 57
. 2406
1 CS.d2
Jasper
35 05
85 37
1903.9
3 34- 7 E
66 10.3
.2368
, 3 33E
66 12
■ 2364
: CS.4
Grand Junction
35 05
89 13
1881.7
5 58.9 E
66 00.4
.2429
5 03E
65 58
.2390
CS.di
Memphis
35 08
90 04
1905.9
5 29. 5 E
65 46.5
.2408
5 28E
65 45
.2411
CS.6
Benton
35 10
84 39
1903. 7
I 41.8 E
65 58. 2
.2378
, I 40 E
65 59
.2374
CS.4
Cleveland
35 10
84 53
1903. 7
I 27.6 E
65 50.9
.2395
1 I 26E
65 52
.2391
CS.4
Pulaski
35 13
87 03
1881.6
5 01.5 E
66 06.4
. 2421
' 3 57 E
66 II
.2373
CS.di
Tullahoma
35 22
86 13
i88i.6 ;
3 30. 9 E
66 25.5
•2405
2 26 E
66 30
.2368
CS.di
Dunlap
35 23
85 22
1903- 9 ;
2 58.8 E
66 37. I
•2345
2 57 E
66 38
.2342
CS.4
Clifton
35 23
88 01
1865.2
5 48 E
3 54E
-_ -_
CS.d
Athens
35 27
84 36
1903.9
43. 3 E
66 01. 7
•2399
41 E
66 03
.2395
CS.4
Madisonville
35 30
84 21
1903- 7
59. 2 E
66 12.2
•2367
57E
66 14
.2362
CS.4
Dayton
35 30
85 01
1903- 8
2 26. 8 E
66 24. 7
.2385
' 2 25 E
66 26
.2382
CS.4
Decatur
35 31
8448
1903- 9
I 40. 5 H
66 23.7
.2382
; I 39E
66 25
.2379
CS.4
Brownsville
35 35
89 18
1905.9
4 44.2 E
66 22.0
.2344
4 44E
66 21
.2347
CS.6
Pikeville
35 36
85 12
1903- 9
2 54.4 E
66 50. 2
.2322
2 52 E
66 52
.2319
CS.4
Columbia
35 37
87 04
1881.6
4 35-5 E
67 07.5
.2:170
3 31 E
67 05
•2333
CS.di
Jackson
35 39
88 51
1881.7
» 5 49. 8 E
66 05.4
•2431
4 54E
66 05
.2393
CS.di
Maryville
35 45
83 58
1903. 6
I 02.0 E
66 42. 2
.2326
I 00 E
66 44
.2322
CS.4
Loudon
35 45
84 22
1903- 9
17. I VV
66 21.3
. 2400
19W
66 23
•2396
CS.4
Sevierville
35 51
83 33
1903. 6
28. E
66 56. 2
.2314
26 E
66 58
.2310
CS.4
Kingston
35 52
84 30
1903. 8
I 21.9 E
67 16.8
.2311
I 20 E
67 18
•2307
, CS.4
Murfreesboro
35 53
86 25
1881.6
4 53-5 E
66 53. 3
.2386
, 3 49E
6643
•2350
CS.di
Waldensia
35 54
84 46
1907. 2
07.4 E
66 46. I
.2346
I 08 E
66 42
.2355
' CS.7
Sparta
35 55
85 26
1907.2
3 37.9 E
67 03.6
. 2296
3 39E
67 00
.2305
CS.7
Knoxville (new)
35 56
83 57
1906.9
13. 2 W
66 46. 2
.2322
II W
6644
.2327
CS.7
Knoxville
35 57
83 58
1906. 6
II. W
66 50. 2
.2318
09 W
66 48
.2323
CS.7
Newport
35 57
83 10
1903- 6
15.8 E
67 04.
. 2304
13 E
67 06
. 2300
i CS.4
Crossville
35 57
85 02
1903. 8
3 27.5 E
67 36.4
.2332
3 26E
67 38
.2328
' CS.4
Huntingdon
36 00
88 23
1905.9
4 19-7 E
66 59.0
.2303
4 20 E
66 58
. 2306
CS.6
Dand ridge
36 01
83 25
1903. 6
15.8 E
67 03. 5
•2304
13 E
67 05
•2999
CS.4
Big Butte
36 04
82 38
1893. 8
39- E
II E
CS.d
Johnsonville
36 04
88 00
1865.2
! 5 50 E
3 56 E
_- ._
CS.d
Clinton
36 06
84 08
1903- 8
05.6 E
67 07. 6
.2311
04 E
67 09
■2307
! CS.4
Wartburg
36 07
84 36
1903 8
I 09. I E
66 50. 6
•2374
I 07 E
66 52
.2371
CS.4
Nashville
36 08
86 46
1905. 9
' 3 48. E
67 00. 9
■2294
3 48E
67 00
. 2296
CS.6
Erwin
36 09
82 26
1903.5
II. 6 E
67 34-
•2257
09 E
67 36
.%?52
CS.4
Rutherford
36 09
89 01
1881.7
5 59.6 E
67 13.8
.2360
5 03 E
67 07
.2321
CS.di
Greene ville
36 10
82 50
1903- 6
23. 7 W
67 13.5
.2285
26 W
67 15
.2280
CS.4
Cookeville
36 10
85 29
1905.9
2 51.2 E
67 03. 7
.2329
2 52 E
67 03
.2332
CS.6
Morristown
36 12
83 18
1903. 6
20. 4 E
67 16.0
.2294
18 E
67 18
. 2290
CS.4
Charlotte
36 12
87 18
1905.9
3 29. 5 E
67 19.8
.2278
3 30E
67 19
.2281
CS.6
Lebanon, N. base
36 13
86 18
1898. 2
3 56. 5 E
66 48. 3
.2346
3 45E
6653
• 2325
CS.d2
62 MAGNETIC TABLES AND CHARTS FOR 1905.
Table I. — Observed magnetic elements and the values reduced to January i, igo^ — Continued.
TENNESSEE— Continued
station
Lati-
tude
N.
Longi>
tude
W.ofGr.
Observed
Reduced to 190.
J.O
Date
Decl'n
Incl'n
H. Int.
Decl'n
Incl'n
H. Int.
Source
MaynardvUle
/
36 15
/
83 48
1903- 6
/
10. 6 W
f
67 04. 8
c. g. s.
• 2337
/
13 w
/
67 07
C. g. J.
•2333
CS.4
Jonesboro
36 16
82 28
1903- 5
19-4 E
67 30.5
.2249
17 E
67 32
.2244
CS.4
Edgefield
36 16
86 46
1871.9
5 02.0 E
67 10.7
■ 2331
3 20E
66 50
•2295
NA.di
Rutled^e
36 17
83 32
1903. 6
02.9 W
67 09.8
.2299
05 W
67 12
.2295
CS.4
Carey ville
36 18
84 13
1900.5
12. 7 E
67 45-4
.2270
06W
67 51
•2255
CS.d2
Elizabethton
36 20
82 13
1903. 5
10. 8 E
67 44-7
.2230
08 E
67 47
.2231
CS.4
RogersvUle
36 24
83 00
1903- 6
08. I W
67 39. 2
. 2262
10 W
67 41
■2257
CS.4
Huntsville
36 25
84 30
1903- 8
24. 1 W
67 56. 8
.2270
26W
67 59
.2266
1 CS.4
Tazewell
36 27
83 34
1903.6
43.'5 W
67 33.9
• 2305
46 W
67 36
. 2301
CS.4
Jamestown
36 27
84 56
1903. 8
3 05. I E
67 28. I
.2305
3 03*E
67 30
.2301
CS.4
Mountain City
36 28
81 49
1903- 5
32.4W
67 57.9
. 2220
35 W
68 00
.2215
CS.4
Blountville
36 29
82 21
1903- 5
24. 9 W
67 38.3
• 2245
28 W
67 40
. 2240
CS.4
Iron Mountain Fur-
36 30
88 00
1903-
4 24 E
4 24E
CS.3
nace Tract.
Fort Henry
36 30
88 04
1865. 2
6 24 E
4 22 E
CS.d
Bristol
36 36
82 11
1890.5 j
07. 6 E
67 48.5
.2236
36W
1
67 5^
. 2206
CS.di
TEXAS
Mouth Rio Grande
25 57
Fronton
26 05
Ringgold Barracks
26 23
Topo
26 45
Pena
27 19
Laredo, Fort Mcin-
27 30
tosh
Laredo
27 32
San Diego
27 45
Corpus Christi
27 47.
Beeville
28 23^
CotuUa
28 27
Carrizo Springs
28 30
Port Lavaca
28 37
Eagle Pass
28 44
Victoria
28 48
Jupiter
28 55
Karnes
28 55
Pearsall
28 55
Edna
28 58
Cuero
29 06
Lindenau
29 08
Columbia
29 10
Spofford
29 II
Uvalde
29 13
Boquillas
29 15
Galveston
29 17
Do.
29 18
Wharton
29 18
Hondo
29 19
Bracketville
29 19
Del Rio
29 22
Dollar Point
29 26
Hallettsville
29 27
San Antonio
29 29
Gonzales
29 30
Mission
29 43
Bandera
29 44
Houston
29 47
Langtry %
29 48
Lagrange (new)
29 52
Lagrange, old
29 53
San Marcos
29 54
BellviUe
29 56
Kerrville
30 01
97 08
97 12
98 43
97 28
98 39
99 31
99 31
98 14
97 24
97 46
99 14
99 51
96 37
100 30
97 00
95 21
97 54
99 09
96 40
97 17
97 22
95 35
100 25
99 48
103 02
94 48
94 47
96 04
99 05
100 25
100 52
94 53
96 57
98 32
.97 26
98 10
99 05
95 21
loi 35
96 49
96 54
97 56
96 13
99 08
853- 9
906.0
853.9
906.0
890.0
895.3
890. I
905- 9
906.0
906.0
902.0
[902.0 '
890. 2 I
[902.0
901.7
853.4 '
[906.0 I
902.0
[^1.7
[901.7 ;
902.7
890.3
890. 1 I
[901.8 I
[906. 2
906.3
895. 4 ,
890.2 I
901.8
[901.8 I
901.8 I
878.4
[901.7
902.8 '
[901.7
906. o I
901.5 '
[902. 6
890. I
[902.5
902.5
902.7 .
[902.5
901.5
9 00. 9 E
8 04. 2 E
9 15 E
8 14. 3 E
8 30. 7 E
8 34. 6 E
8 47.
8 39-
8 24.
8 58.
8 42.
9 44.
8 04.
9 19.
8 49.
9 08.
8 38.
8 17.
8 12.
8 14.
8 15.
7 37-
9 13.
9 38.
10 12.
7 28.
7 19.
8 19.
8 33.
9 09.
9 48.
8 17.
8 26.
8 48.
8 II.
8 46.
8 34-
7 45-
9 33-
8 07.
*7 35-
8 21.
8 03.
8 28.
7E
oE
I E
3E
4E
6E
5E
5E
2E
7E
4E
2E
6E
8E
oE
3E
9 E
6E
6E
2E
75
6E
4E
23.6
28.4
27
13.4
55 03.3
55 10.7
52
54
52
55
55 00.2
56 12.7
56 33- 7
57 16.9
56 26. 3
56 08. I
57 01.3
56 39- 4
57 47.2
57 "-4
57 32.0
57 10.2
57 55.2
57 40.4
57 49.0
57 54. 7
56 59- 6
57 35.6
57 01.3
58 36. 6
58 06. 3
57 53- 2
57 41- I
57 23.4
57 16. g
58 21.5
58 13- 3
57 56. 2
58 11.5
58 28.5
58 15-8
59 10.6
57 22.2
58 50.9
58 26.9
58 44.0
59 10. o
59 02. 7
c.g.s.
3016
2986
3020
3005
3014
2946
2932
2881
2939
2951
2941
2934
2868
3041
2884
2903
2882
2886
2882
2903
2936
2887
2898
, 2840
2885
2887
2882
2890
2921
2938
2859
2873
2869 I
2857
2872
2830 I
2921 !
2832 ,
2878
2841
2817
2791
53 26
54 25
8 09 E
8 01 E
8 23 E I 53 30 i
8 II E . 55 10
8 33 E
8 48E
8 50E
8 36E
8 21 E
8 55E
8 51 E
9 53 E
8 loE
9 28 E
8 59E
7 32E
8 35 E
8 26E
8 22 E
8 24 E
8 22 E
7 37 E
9 16 E
9 48 E
10 09 E
7 26E
7 28E
8 18 E
8 43E
9 19 E
9 58 E
7 39 E
8 35 E
8 55E
8 21 E
8 43 E
8 45 E
7 53E
9 39 E I
8 14 E
7 43E '
8 29 E ,
8 II E I
8 39E .
55 36
55 34
55 33
56 10
56 31
57 14
56 34
56 16
57 34
56 47
57 56
58 08
57 29
57 19
58 04
57 49
57 54
58 27
57 30
57 43
56 59
58 34
58 29
58 23
57 49
57 31
57 26
58 44
58 22
58 02
58 22
58 26
58 25
59 18
57 52
58 58
58 34
58 50
59 17
59 12
c. g. s.
3021
2991
2961
2964
2955
2950
2937
2886
2926
2939
2883
2922
2853
2854I
2890
2891*
2867
2871
2872
2845
2880
2874
2902
2846
2845
2829
2869
2877
2908
2855
2845
2865
2855
2862
2858*
2819
2881
2821
2868
2831
2806
2777
CS.dit
CS.6
CS.dit
CS.6
CS.di
CS.di
CS.di
CS.6
CS.6
CS.6
CS.d2
CS.d2
CS.d2
CS.d2
CS.d2
CS.di
CS.6
CS.d2
CS.d2
CS.d2
CS.d2
CS.di
CS.di
CS.d2
CS.6
CS.6
CS.di
CS.di
CS.d2
CS.d2
CS.d2
CS.di
CS.d2
CS.d2
CS.d2
CS.6
CS.d2
CS.3
CS.di
CS.3
CS.3
CS.3
CS.3
CS.d2
fU. S. and Mex. Bound. Sur.; W. H. Emory, observer; Am. Acad. Sc., Vol. VI, 1856.
MAGNETIC ELEMENTS IN THE UNITED STATES. 63
Table I.— Observed magnetic elements and the valves reduced to Januuiry j, 1905 — Continued.
TEXAS— Continued
Observed
Reduced to looc.o
Lati-
^JS"
Station
tude
tude
Date
Source
N.
W.ofGr.
Decl'n
Ind'n
H. Int.
Decl'n
Incl'n
H. Int.
Rock Springs •
/
30 01
/
100 12
-
1901.5
/
9 30. 4 E
/
58 19- I
c.g.s.
.2867
/
9 40E
/
58 28
c. g. s. ;
.2855
CS.d2
Orange
30 03
93 43
1890.3
7 09. 8 E
59 25.0
. 2822
7 01 E
59 51
.2769
CS.di
Liberty
30 04
94 48
1902. 8
7 36. 1 E
59 40. 6
. 2782
7 42 E
59 46
-2772
CS.3
Beaumont
30 05
94 05
1890.3
7 30. 7 H
59 20.6
• 2823
7 24 E
59 49
.2770
CS.di
Hempstead
30 08
96 10
1878.5
8 36. 7 E
7 57 E
CS.d
Sanderson
30 09
102 26
1890. I
10 08. 4 E
57 22.7
.2909
lo 16 E
57 50
.2868
CS.di
Marathon
30 13
103 14
1906. 2
10 20. 7 E
58 22.9
. 2820
10 17 E
58 20
.2823
CS.6
Fredericksburg
30 15
98 53
1901.5
8 59- 2 E
59 02. 2
-2834
9 09E
59 10
.2820
CS.d2
Austin
30 16
97 46
1906. I
8 19. 8 E
59 21.3
-2797
8 17 E
59 19
.2801
CS.6
Conroe
30 19
95 26
1902.5
7 50. 2 E
59 42.5
.2783
7 56 E
59 49
.2772
CS.3
Marfa
30 19
104 01
1902.0
10 44. E
58 03. 9
.2848
10 53 E
58 10
.2840
CS.d2
Alpine
30 22
103 40
1902.0
10 09. 5 E
58 46. 2
■2793
10 18 E
58 52
.2785
CS.d2
Do.
30 22
103 40
1906.2
58 50.6
_ _ _ _
58 48
CS.6
Anderson
30 29
95 59
1902.5
7 38. 2 E
59 45-3
•2783
7 45 E
59 52
.2772
CS.3
Junction City
30 29
99 53
1901-5
9 06. 8 E
58 51-3
.2825
9 17E
59 00
. 2812
CS.d2
Caldwell
30 32
96 46
1902.5 1
8 25.9 E
59 32.4
.2791
8 33 E
59 38
. 2781
CS.3
Sonora
30 35
100 40
1901.5
9 22.4 E
59 00. I
. 2841
9 32E
59 08
.2828
CS.d2
Valentine
30 35
104 30
1902. I
II 06. E
: 58 06. 7
.2856
II 15 E
58. 12
.2846
CS.d2
Georgetown
30 39
97. 40
1902.7
8 26. 7 E
59 44-8
■2784
8 33E
59 50
-2774
CS.3
Livingston
30 43
94 56
1902.6
7 33- 8 E
60 14. 2
-2759
7 40 E 1 60 20
.2748
CS.3
Ozona
30 43
loi 13
1901-5
9 35- 6 E
59 16.4
.2813
9 46 E
59 24
. 2801
CS.d2
Llano
30 44
98 41
1901.5
9 15-0 E
59 34. 3
. 2807
9 24E
59 42
-2793
CS.d2
Mason
30 45
99 14
1901.5 1
9 48. 7 E
59 13-4
. 2821
9 58E
59 22
.2808
CS.d2
Cameron
30 52
96 58
1902.7
8 12.0 E
59 51-4
.2775
8 18 E
59 57*
.2766
CS.3
Eldorado
30 52
100 39
1901.5
9 10. 9 E
59 40. I
2790
9 21 E
59 48
.2777
CS.d2
Menardville
30 54
99 51
1901.5 1
8 31.0 E
59 23.6
.2786
8 40 E
59 31
.2774
CS.d2
Fort Stockton
30 54
102 50
1906. 2
10 57- 4 E
59 00.2
.2806
10 54 E
58 58
. 2810
CS.6
Jasper
Tnmty
30 55
93 59
1906. 2 '
7 21. 9E
60 42. 2
. 2720
7 19 E
60 40
-2725
CS.6
30 57
95 22
1902. 6 I
7 43- 4 E
60 16. 7
-2755
7 49E
60 23
-2745
CS.3
Madisonville
30 57
95 55
1902.6 j
8 04. 8 E
60 II. 7
. 2762
8 II E
60 18
•2752
CS.3
Franklin
31 01
96 30
1902.5
8 20. 2 E
60 05.2
.2767
8 26E
60 II
.2757
CS.3
Lampasas
31 01
98 10
1906. I
8 38. 4 E
60 22.0
•2729
8 36E
60 20
.2734
CS.6
Mouth of Canyon
31 02
105 37
1852.5 ,
12 01 E
57 38
•2784
II 06E
58 15
•2674
CS.dit
Belton
31 04
97 28
1901.3 ;
8 25.2 E
60 00. 8
.2764
8 34 E
60 10
•2749
CS.d2
Kent
31 04
104 14
1902. I
II 10. E
58 52.0 . 2828
II 19 E
58 58
.2819
CS.d2
Biady
31 08
99 21
1901.4
9 33. E
59 40. I . 2805
9 42E
59 48
.2791
CS.d2
Sierra Blanca
31 10
105 23
1905. I
II 36.8 E
58 50.6 ;.28oi
II 36 E
58 50 . 2801
CS.5
San Saba
31 II
98 43
1901.4
8 57.6 E
60 09. 5 . 2772
9 07E
60 18 .2758
CS.d2
Sherwood
31 17
100 48
1901.5
9 36. 5 E
59 36. 4 . 2802
9 46E
59 44 • 2790
CS.d2
Lufkin
31 21
94 44
1902. 6
7 38. 2 E
60 51.5 .2728
7 44E
60 58
.2718
CS.3
Pecos
31 26
103 33
1901.9
10 20. 2 E
59 23. 7
. 2782
10 30 E
59 30
-2772
CS.d2
Gatesville
31 27
97 45
1902.7
8 44.0 E
60 15.3
•2756
8 51 E
60 21
-2747
CS.3
San Angelo
31 28
100 26
1901. 6
9 25.9 E
59 52.9
■2792
935E
60 00
. 2780
CS.d2
Paint Rock
31 30
99 55
1901.4
9 49. 2 E
60 18. 2
.2758
958E
60 26
-2745
CS.di
Groesbeck
31 32
96 31
1901.3
8 27. I E
60 39: 4
-2749
8 36E
60 48
•2734
CS.di
San Elizario
31 35
106 16
1852.5
58 57
_ - _
59 34
CS.it
Waco
31 36
'97 08
1902.^7
8 18. 4 E
60 32.7
-2739
8 24E
60 39
. 2729 j
CS.3
Chamliss
31 39
98 08
1906. I
8 56. 6 E
60 36. 3 1- 2735
8 54E
60 34
.2740
CS.6
Ballinger
31 45
99 58
1901.4 ,
9 53. 2 E
60 17.3 .2752
9 02 E
60 25
•2739
CS.d2
El Paso
31 45
106 30
1905. I
12 03. 2 E
59 22.2 ..2776
12 03 E'
59 22
• 2776
CS.5
Palestine
31 47
95 38
1902. 6
7 47.5 E
61 07.4 .2713
7 53 E
61 13
.2703
CS.3
Boundary
31 47
106 31
1892. 3
II 53- 3 E
58 57-0 .2799
12 03 E
59 12
- 2776 i
CS.di
Center
31 48
94 II
1902. 6
7 40. 3 E
61 26.5 ;. 2693
7 47 E
61 32
. 2682
CS.3
Frontera
31 49
106 33
1852.5
12 24 E
59 05
1 II 04E
59 42
CS.dit
Do.
31 49
106 33
1859. I
12 25.0 E
11 12 E
CS.dt
Guadalupe
31 49
103 55
1902. I
10 57. 2 E
59 33-6 .2788
II 06 E
59 39
-2779
CS.d2
Coleman
31 50
99 25
1901. 6
9 21. 3E
60 43. 9 .
.2743
9 30E
60 51
.2730
CS.d2
Steriing City
31 51
loi 00
1901. 6
10 24. 8 E
60 27.8 '
-2739
10 34 E
60 35
. 2728
CS.d2
Garden City
31 52
loi 29
1901. 6
10 34. 7 E
60 19.9
-2734
10 44E
60 27 1. 2723
CS.d2
Odessa
31 52
102 23
1905- I 1
10 54. 6 E
60 19. 9
-2729
lo 54 E
60 20 I. 2730
CS.5
Robert Lee
31 54
100 29
1901. 6 '
9 58. 2 E
60 22. 3
-2751
10 07 E
60 29
•2738
CS.d2
Meridian
31 57
97 40
1902.7 ;
8 25. 6 E
61 05.7
.2714
8 32E
61 II
■2705
CS.3
Jacksonville
Henderson
31 58
95 2-3
1902. 6
7 370E
61 26.6
. 2691
7 43 E
61 32
.2681
CS.3
32 II
94 49
1902. 6 1
7 51. 6E
61 45-5
.2677
7 58 E
61 51
.2667
CS.3
Athens
32 13
95 51
1902.7
8 00. 6 E
61 41.6
.2688
8 07 E
61 47
.2678
CS.3
Stephenville
32 13
98 12
1901.3 1
8 47.6 E
61 20.0
. 2711
8 57 E
61 28
.2697
CS.d2
tU. S. and Mex. Bound. Sur.; W. H. Emory, observer; Am. Acad. Sc, Vol. VI, 1856.
t J. H. Clark, observer.
64 MAGNETIC TABLES AND CHARTS FOR 1905.
Table I. — Observed magnetic elements and the values reduced to January i, 1905 — Continued.
TEXAS— Continued
Station
Big springs
Cisco
Colorado S. M.
Waxahachie
Longview
Kaufman
Mineola
Albany
Snyder
Fort Worth
Weatherford
Anson
Roby
Jefferson
Palo Pinto
Breckenridge
Mineral Wells
Graham
Aspermont
Sulphur Springs
Haskell
Mount Pleasant
Clairmont
Throckmorton
McKinney
Jacksboro
Texarkana
Benjamin
Sherman
Seymour
Lubbock
Bowie
Gainesville
Guthrie
Dickens
Emma
Paris
Henrietta
Floydada
Crowell
Matador
Paducah
Vernon
Plainview
Quanah
Childress
Silverton
Bovina
Dimmitt
Tulia
Memphis
Hereford
Wellington
Clarendon
Canyon
Claude
Amarillo
Panhandle
Lefors
Pampa
Tascosa
Mobeetie
Channing
Miami
Plemons
Hartley
Dumas
Canadian
Lati- Longi-
tude tude
N. W.ofGr.
Date
902. 8
902.9
902.9
902. 8
902.9
902.9
902.9
:902. 9
903- o
902.8
902. 8
902. 8
902.7
902. 8
902.7
902
902
[902.
902
902
Observed
[901. 6
888.9
901. 6
902
872
[902
902
901
901
889.0 I
[906.9 I'
901.7 I
901.7
902.6 I
901.7 I
[901.7 li
901.7 II
901.7 I
901.7 ;!
902. 6 I
[901.7
go2.6
901.7
901
902
[901
901
901
878.5
901.7 ,
[902.9 |l
906.9
900.0 J
901.7
901.7 ,1
[902.9 '
902.7 I
900.0 '
902.9 ,
902.9 |l
[902.9 :
902.9 '
900.9 I
902.9 |i
902.9
902.9 I
902.9
902.8 ||
Ded'n
10 14. 8 E
9 38- I E
10 47. 6 E
8 18. 8 E
8 37.8 E
8 05. 2 E
7 45. 6 E
9 26. o E
10 25. 7 E
9 07. 2 E
9 07. 9 E
10 15.0 E
xo 15.7 E
7 24. 6 E
8 59. 8 E
9 33. 1 E
9 01. I E
9 10. o E
10 50. o E
7 43. 8 E
9 46. 8 E
7 44. 2 E
lo II. 2 E
9 35- I E
8 37-6 E
9 08. 3 E
7 18. 8 E
9 54. o E
9 19.9 E
9 .46. 4 E
10 29. o E
9 16. 9 E
9 06. 3 E
10 45. 6 E
10 04. 6 E
10 18. 7 E
7 57.2 E
' 9 07. 5 E
10 20. 9 E
10 36. 3 E
10 06. I E
10 15.5 E
9 40. 9 E
10 48. 7 E
10 05.5 E
10 38. 4 E
10 29. 2 E
10 17.7 E
12 26.7 E
11 10. 5 E
9 59- 7 E
II 35-4 E
10 59-3 E
10 29. 3 E
11 29. I E
10 52. I E
11 40. 2 E
10 54- 5 E
10 45- 3 E
10 55.5 E
11 46. 2 E
10 42. 7 E
11 50.3 E
10 45. 2 E
11 17.8 E
II 49- 3 E
II 48. 3 E
10 59. 7 E
Incl'n
Reduced to 1905.0
H. Int. , Decl'n I Incl'n | H. Int.
Source
60 45.5
60 55-5
61 14.8
61 41.3
61 57-6
61 58.5
62 09. 2
61 43.3
61 01. 6
61 40.3
62 17.5
61 48.9
61 42.5
62 25.0
62 00.4
61 31.6
61 550
62 14.5
61 41.9
62 40. I
62 04. 2
62 46.3
61 50.4
62 08. 8
62 22.0
62 28. I
63 10.8
62 45.2
62 43. I
62 21.8
62 57.8
63 01. 2
62 24. 9
62 13.5
62 03.0
63 19- I
62 55.0
62 25. I
62 51.5
62 41. 4
62 35.2
63 01.7
62 44. 2
62 58.3
63 08.4
63 13- 7
63 17- 7
63 04. 2
63 10. o
63 24.4
63 05.0
63 32. 8
63 45- I
63 35.0
63 55-4
64 01. 8
64 15.0
64 18.9
64 35.4
64 12.4
64 36. 2
64 21.3
64 27.5
64 37- 6
64 32.0
64 37. 6
1 64 43. 9
2602
2627
2588
2631
2610
2639
2633
2583
2600
2636 1
2598
2606 I
2616 !
2591 I
2620
2605 I
2593 I
2583
2567
2576 '
2587 j
2575 I
2591 ;
2566 t
2558 I
2567
2542
2543
2504 .
2525
2490
2516
2478
2512 I
2494
2480
2496 I
2489
2495 I
c. g. s.
1
•2705
' CS.d2
.2683
1 CS.di
.2679
1 CS.d2
. 2672
CS.3
.2593
NA.di
.2660
CS.3
. 2641
CS.3
.2682
1 CS.d2
. 2702
CS.d2
.2648
i CS.di
.2636
1 CS.7
.2645
, CS.d2
.2650
1 CS.d2
.2625
; CS.3
.2632
1 CS.d2
.2676
CS.d2
.2654
1 CS.d2
.2625
CS.d2
.2659
CS.d2
.2617
CS.3
.2647
i CS.d2
. 2611
CS.3
. 2642
1 CS.d2
.2636
CS.d2
•2649
' CS.3
.2623
CS.d2
•2578
CS.d2
.2580
1 CS.d2
' CS.d
•2591
1 CS.d2
. 2619
1 CS.3
.2596
, CS.7
. 261 1
' CS.d2
. 2600
1 CS.'d2
. 2629
1 CS.d2
.2626
; CS.3
.2574
ICS.3
.2581
CS.d2
.2629
CS.3
.2591
•CS.3
. 2600
CS.3
. 2609
CS.3 '
•2577
' CS.d2
.2613
i CS.3
.2598
CS.3
.2586
' CS.3
•2577
, CS.3
. 2561
CS.3
•2570
' CS.3
.2581
1 CS.3
.2569
CS.3
.2585
1 CS.3
.2560
CS.3
.2552
! CS.3
.2560
CS.3
.2536
1 CS.3
•2537
' CS.3
.2498
1 CS.3
.2518
CS.3
.2484
1 CS.3
.2510
' CS.3
.2472
, CS.3
. 2506
CS.3
.2488
1 CS.3
.2474
1 CS.3
•2490
, CS.3
.2483
CS.3
.2489
i CS.3
MAGNETIC ELEMENTS IN THE UNITED STATES. 65
Table I. — Observed magnetic elements and the values reduced to January i, 1903 — Continued.
TEXAS— Continued
UTAH
Observed
Reduced to 1905.0
Lati-
Lonjfi-
Source
Station
tude
tude
Date
N.
W. of Or.
Decl'n
Incl'n
H. Int.
Decl'n
Ind'n
H.Int.
/
/
f
/
c.g.s.
1 ° '
/
c. g. s.
Dalhart
36 04
102 31
1902.7
II 55-5 E
64 41.8
• 2474
12 02 E
64 45
.2467
Sf-3
Higgins
36 08
100 01
1902.7
10 53- 7 E
65 23.4
.2442
II 00 E
65 27
• 2435
Si-3
Hansford
36 13
lOI 16
1902.7
II 10. I £
6448.6
.2482
II 17 E
64 52
• 2475
CS.3
Lipscomb
36 15
100 15
1902.7
II 01.9 E
65 19- 5
.2440
II 09 E
65 23
• 2433
Sf-3
Ochiltree
36 17
100 48
1902.7
II 02.8 E
65 06. 2
.2464
II 10 E
65 10
• 2457
CS.3
Stratford
36 20
102 04
1902.7
II 5I-7E
65 03. 5
.2452
II 58 E
65 07
• 2445
CS.3
Texline
36 23
103 00
1902.7
12 18.4 E
64 58.9
.2442
12 25 E
65 02
• 2436
CS.3
Kanab
/
37 02
112
32
1906.6
. /
15 48. 9 E
/
63 52.6
c. g. s.
.2478
/
15 44E
/
63 52
c. g. s.
.2481
CS.7
St. George
37 08
113
35
1906.6
16 02. 2 E
63 34.9
•2493
15 57 E
63 34
.2496
Si-7
Modena
37 49
113
56
1906.6
15 53. 4 E
63 46. 3
.2484
15 48 E
63 45
.2487
CS.7
Panguitch
37 50
112
27
1906.6
16 02. 2 E
64 15.5
.2470
15 57 E
64 15
•2472 .
CS.7
Parowan
37 53
112
51
1906.6
16 21.4 E
64 16.4
.2449
16 17 E
64 15
.2452
CS.7
Mount Ellen
38 07
no
49
1891.6
15 07.6 E
66 45.0
.2342
15 26 E
66 54
.2322
CS.di
Beaver
38 13
112
40
1906.6
16 02.4 E
64 33. 3
.2437
15 58 E
64 32
.2440
S?-7
Do.
38 16
112
38
1885. 7
15 29. 9 E
64 20. 7
.2450
15 49 E
64 32
•2423
CS.di
Junction
Tamarac
38 17
112
15
1906.6
15 38.2 E
64 34- I
.2430
15 33 E
64 33
•2433
CS.7
38 24
112
24
1885.6
15 37.0 E
64 40. 4
.2458
15 56 E
64 50
.2431
CS.di
Tushar
38 25
112
24
1885.7
15 22. oE
64 55. 4
.2440
15 41 E
65 05
.2418
CS.di
MUford
38 25
113
00
1885.7
15 13. 3 E
64 38. 3
•2445
15 32 E
6448
.2422
CS.di
Mount Waas
38 32
109
14
1893.6
14 35- 4 E
65 57.4
•2450
14 52 E
66 04
.2431
CS.di
Moab, Warner Rch.
38 34
109
32
1893.6
15 10.9 E
15 25 E
_ - _ _
CS.d
Richfield
38 47
112
07
1906.6
16 53. 1 E
65 II. I
.2399
16 48 E
65 10
.2402
CS.7
Green River
38 59
no
10
1906.6
15 48. 2 E
66 08.0
.2345
15 44E
66 07
.2348
CS.7
Wasatch
39 07
III
27
1890.7
16 37. 7 E
65 49. 3
•2345
16 58 E
65 56
.2324
CS.di
Manti
39 16
III
40
1906.6
16 50. 6 E
66 01.6
.2345
16 46 E
66 00
.2348
CS.7
Deseret
39 18
112
38
1884. 7
16 10. 3 E
65 34. 8
.2406
16 27 E
65 42
•2379
CS.di
Scipio
39 24
112
12
1884. 7
16 10. 1 E
65 38. 8
•2387
16 27 E
6546
.2360
CS.di
Pattnos Head
39 30
no
19
1890.8
15 54. oE
66 13.2
.2348
16 12 E
66 20
.2327
CS.di
Price
39 36
no
50
1905.7
16 34. 2 E
66 n.6
.2341
16 32 E
66 II
.2342
CS.6
Nephi
39 42
III
51
1883. 9
16 27.2 E
66 26. 2
.2353
16 41 E
6634
.2325
CS.di
Do.
39 42
III
51
1884.6
._
66 04. 6
-_
66 12
CS.d
Dragon
39 47
109
06
1906.6
15 38. 8 E
67 08.9
.2323
15 34 E
67 08
.2326
CS.7
Mount Nebo
39 48
jii
46
1887.6
' 16 17.2 E
66 16.0
•2336
16 36 E
66 23
.2312
CS.di
Provo
40 15
III
40
1883. 9
16 31. 6E
66 41.0
•2339
16 45 E
66 48
•2314
CS.di
Do.
40 15
in
40
1884. 8
_
66 36.4
6644
CS.d
Mt. Guyot, Deseret
Lake Shore
40 27
112
37
1892. 7
16 42.9 E
66 45.0
.2297
^7 03 E
66 52
.2278
CS.di
40 40
112
26
1887. 8
16 38. 2 E
66 59.6
•2309
16 56 E
67 08
.«285
CS.di
Salt Lake
40 46
in
54
1893- 4
16 22.0 E
67 05. 2
. 2291
16 42 E
67 II
.2272
CS.di
City Creek
40 48
III
53
1893.4
16 35- 7 E
16 56 E
_ _ __
CS.d
Waddoup
40 54
in
53
1892.4
16 34- 7 E
67 15.8
.2269
16 55 E
67 22
.2249
CS.di
Antelope
40 58
112
13
1892. 8
16 18.3 E
67 40. 8
.2247
16 38 E
67 47
. 2228
CS.dr
C^astle Rock
41 08
in
10
1878. 8
16 57. 1 E
17 02 E
CS.d
Ogden Peak
41 12
in
53
1888. 7
17 25. 8. E
67 53.0
.2312
17 46 E
68 00
.2289
CS.di
Ogden
41 13
112
00
1905.4
17 39.7 E
67 27.4
.2242
17 38 E
67 27
.2243
CS.5
Promontory
41 18
112
25
1892.6
17 07. 4 E
67 39.5
.2234
17 28 E
67 46
.2215
CS.di
Corinne
41 38
112
06
1881.3
17 30. 9 E
67 47. 8
.2242
17 41 E
67 54
. 2212
CS.di
Kelton
41 45
113
08
1881.3
17 45- 5 E
67 49- 7
•2243
17 55 E
67 56
.2213
CS.di
53819—08-
66 MAGNETIC TABLES AND CHARTS FOR 1905.
Table I. — Observed magnetic elements and the values redticed to January i, 1905 — Continued.
VERMONT
Observed
Reduced to z9o«
;.o
Lati-
Longi-
•
Source
station
tude
tude
Date
N.
W.ofGr.
(Decl'n
Incl'n
H. Int.
Ded'n
Incl'n
H. Int.
/
/
/
/
c. g. s. 1
/
/
c. g. S.
Brattleboro
42 49
72 34
1898.8
II 38.3 w
73 36. 2
■ 1707
II 57 W
73 30
.1711
CS.d2
Bellows Falls
43 09
72 28
1876.6
II 06. 7 W
74 29.7
.1675
12 28 W
73 45
. 1721
NA.di
Manchester
43 10
73 05
1905- 6
12 08.8 W
73 56.6
. 1680
12 07 W
73 57
.1680
CS.6
Rutland
43 37
72 58
1905.6
12 28. oW
74 08. 5
.1664
12 26 W
74 09
.1663
CS.6
White River Jc.
43 40
72 18
1876.6
II 05.3 w
75 07.8
. 1609
12 30 w
74 23
. 1652
NA.di
Middlebury
44 01
73 II
1905- 6
12 18.0 W
74 30. 8
.1628
12 16 W 74 31
. 1627
CS.6
Wells River
44 09
72 05
1876.6
II 54. 5 W
75 31.0
■1585
13 22 W 74 46
. 1628
NA.di
Montpelier
44 15
72 32
1898. 8
13 49. 5 W
74 30- 2
. 1619 ,
14 ID W 74 26
. 1629
CS.d2
St. Johnsbury
Burlington
44 24
72 01
1905- 7
13 44- 6 W
74 50.0
• 1595 1
13 42 W 74 50
. 1594
CS.6
44 29
73 12
1905- 6
12 48. oW
74 29.8
• 1634 1
12 46 W 74 30
.1633
CS.6
Hyde Park
44 35
72 37
1905. 7
14 19. 8 W
74 50. 3
• 1598
14 18 Wi 74 51
•1597
CS.6-
St. Albans
44 49
73 03
1905- 7
15 01.4 W
75 14.6
. 1562
14 59 W 75 15
. 1562
CS.6
Derby
45 00
72 12
1876. 6
13 18. 2 W
75 510
• 1530 1
14 40 W 75 03
•1577
NA.di
VIRGINIA
/
/
f
/
c. g. J.
/
. f
c. g. s.
Dismal Swamp B
Stone
Hines, N. C. bndry
36 33
76 23
1886.9
3 15.9 W
68 22.2
. 2192
4 22 W
68 13
.2166
CS.di
36 33
76 34
1887. I
3 04. 7 W
68 32.8
.2186
4 loW
68 24
. 2160
CS.di
Knott I., north end
36 34
75 55
1873.3
2 54- 8 W
68 52.5
.2195
451W
68 14
.2168
CS.di
Bristol
36 36
82 10
1906.6
033.0W
67 53-6
. 2211
31 w
67 52
. 2216
CS.7
Danville
36 37
79 25
1873.6
I 16. 3 w
68 54. 8
.2180
3 loW
68 18
•2147
NA.di
Stuart
36 39
80 16
1901.8
I 53.0 w
67 47.0
•2245
2 01 W
67 50
•2234
CS.d2
Emporia
36 40
77 32
1897.4
3 29. 2 W
68 10.5
. 2176
3 55 W
68 14
.2155
CS.d2
Oldtown
36 40
80 57
1902.5
036.4W
68 19.5
.2185
42 W
68 22
.2177
CS.d2
Rogers
36 40
81 33
1894. 6
13. 5 E
18 W
_. --
CS.d
Big Knob
36 40
82 30
1907.4
I 22. 5 w
67 58.8
.2229
I 17 W
67 57
.2239
CS.7
White Rock
36 40
83 27
1907. 3
039.5W
68 19.8
.2228
034W
68 18
.2238
CS.7
Boydton
36 41
78 22
1906.5
2 48. W
68 25. I
.2156
244W
68 24
. 2161
CS.7
Martinsville, Sch.
grotmds
Martinsville, N. M.
36 42
79 52
1901.8
I 59.9 w
67 53.7
.2230
2 08W
67 58
. 2218
CS.d2
36 42
79 53
1901.8
2 28. 8 W
2 37 W
CS.d
Abingdon
36 42
81 58
1897.6
12. 9W
67 50.0
.2238
1 3iW
67 54
.2218
CS.d2
Jonesville
Princess Anne
36 42
83 II
1902.5
50. 8 W
68 00.2
.2245
055W
68 03
.2237
CS.3
36 45
76 04
1906.5
4 45. I W
68 41.7
.2138
441W
68 40
.2143
CS.7
Houston
3646
78 56
1897.6
2 23.9 w
68 09.9
. 2204
2 48 W
68 14
.2184
CS.d2
Hillsville
36 47
80 44
1902.5
54.3 w
68 27.3
. 2176
I ooW
68 30
.2168
CS.d2
Buffalo
3648
80 29
1895. 7
08. 9 W
68 07. 3
. 22ai
, 40W
68 13
.2181
CS.di
Chatham
36 50
79 23
1901.8
2 15. oW
68 17.2
. 2184
2 24W
68 20
.2172
CS.d2
Marion
36 50
81 31
1898.4
I 02.0 W
68 06.3
.2214
' I 21 W
68 II
.2195
CS.d2
Norfolk
36 52
76 16
1905.2
4 37.5 W
68 39. 3
•2139
, 4 37W
68 39
. 2140
CS.5
Mount Airy
36 52
79 II
1873.7
55. 2 E
68 54- 7
. 2210
' 59 w
68 26
. 2196
NA.di
Little Creek Inlet
36 56
76 II
1906.5
4 34.5 W
68 46.0
.2125
1 4 30W
68 45
.2130
CS.7
Lebanon
3656
82 07
1902.5
I 27. 2 W
67 55. I
.2247
1 I 35 W
67 58
.2239
CS.3
Cape Henry
36 56
76 00
1895.5
3 56.5 W
68 48. 7
•2139
430W
68 51
.2115
CS.di
Cape Henry (new)
36 56
76 00
1906.5
4 4HW
68 53.3
. 2109
1 437W
68 52
.2114
CS.7
Wytheville
36 57
81 04
1902.5
I II. 6W
68 25.3
.2180
, I 18W
68 28
.2173
CS.3
Old Point Comfort
37 00
76 18
1856. 7
I 14. 7 W
69 31.6
. 2148
4 15W
68 40
.2130
CS.di
Do.
37 00
76 18
1902.0
4 20 W
, 4 29 W
CS.d
Rocky Mount
37 00
79 53
1901.7
I 52.4W
68 33.1
.2176
1 2 02 W
68 37
.2165
CS.d2
Wise
37 00
82 37
1902.5
15.3 w
68 29.6
.2193
' 21 W
68 32
.2186
CS.3
Pulaski Inn
37 03
80 46
1902. 6
I 23. 6 W
68 35. 7
.2163
I 29 W
68 38
•2155
CS.3
Pulaski, C. H.
37 04
80 47
1902. 6
I 15.0 W
68 34. 6
• 2165
I 21 W
68 37
.2158
CS.3
Smithville
37 04
78 40
1901.9
2 42.6 W
68 27.5
. 2170
2 53 W
68 30
. 2160
CS.d2
Dinwiddle
37 05
77 35
1901.9
3 12.SW
68 39. 6
. 2160
3 23 W
68 42
■ 2150
CS.d2
Cahas
37 06
80 01
1907.5
I 23. 6 W
68 53.9
.2142
I 18 W
68 52
.2152
CS.7
Cape Charles
37 07
75 58
1856.7 1
I 35. 2 w
69 43-3
.2131
436W
68 52
.2113
CS.di
Tazewell
37 07
81 31
1898.4
I 40. 6 W
68 24.9
.2185
2 00 W
68 31
.2166
CS.d2
Christiansburg
37 08
80 24
1897.6 1
58. 7 W
68 42. I
.2159
I 21 w
68 48
•2139
CS.d2
Bland
37 08
81 08
1902.5 1
I 00.8 W
68 27.6
.2184
I 07 w
68 30
.2176
CS.3
Nottoway
37 08
78 06
1901.9
3 12. oW
68 33.6
.2156
3 23W
68 36
•2145
CS.d2
Clintwood
37 II
82 30
1902.5
09. 7 W
68 32. 8
.2180
15 w
68 34
. 2172
CS.3
Shack Mills
37 12
81 59
1902. 6
I 04. I w
68 38.9
.2197
I 10 W
68 41
. 2190 1
CS.3
Burkeville
37 13
78 12
1873.6 1
I 59. 7 W
69 20.4
.2125
3 54 W
68 43
. 2112 1
NA.di
Petersburg
37 14
77 23
1901.9 i
3 36.4 W
68 45- 9
.2128
347W
68 48
.2118 .
CS.d2
MAGNETIC ELEMENTS IN THE UNITED STATES. 67
Table 1.— Observed magnetic elements and the values reduced to January i, 1^03 — Continued.
VIRGINIA— Continued
Station
York River
Cape Charles
Williamsburg
Rustburg
Farmville
Scott
Bedford City
Salem
Charles City
Amelia
Pearisburg
West Appomattox
W. AppomattoXjS.M .
Appomattox
Wolftrap
Lynchburg
Fmcastle
New Kent
Cumberland
Newcastle
Powhatan
Richmond
Buckingham
Amherst
Rappahannock R.
Natural Bridge
Accomac
Goochland
Joynes
Lovingston
North Mountain
Hanover
Lexington
Tangier I.
Covington
Palmyra
Palmyra, N. M.
Sued
Goshen
Milford
Louisa
Charlottesville
Do.
Greenwood
Warm Springs
Bowling Green
Staunton
Spottsylvania
Orange
Kine George
Fredericksburg
Stanardsville
Burketown
Clark Mountain
Madison
Elkton
Stafford
Monterey
Harrisonburg
Culpeper
Woodville
Calverton
Luray
Mount Vernon
Alwington
Washington
Manassas
Fairfax C. H.
Lati-
tude
N
.
/
37
15
37
16
37
i6
37
17
37
18
37
20
37
20
37
20
37
21
37
21
37
21
37
22
37
22
37
23
37
24
37
25
37
30
37
31
37
31
37
31
37
33
37
33
37
34
37
36
37
37
37
38
37
41
37
41
37 42
37 46
37
46
37
47
37
47
37 48
37 48
37
51
37
51
37
58
37
59
38
01
38
02
38
02
38
03
38
03
38
03
38
04
38
09
38
13
38
H
38
16
38
18
38
18
38
18
38
^9
38
23
38
24
38
25
38
25
38
27
38
29
38
3,S
38 38
38 40
38
42
38
42
38
43
38
45
38
51
Longi-
tude
W.ofGr.
24
02
43
06
25
54
31
06
03
59
44
50
50
48
15
09
53
59
15
06
7 55
7 28
832
9 03
6 18
9 32
5 42
7 54
5 37
853
9 44
7 21
9 27
5 59
9 59
8 16
8 16
5 26
9 30
7 22
8 00
8 30
8 30
8 47
9 45
7 21
9 04
7 34
8 06
7 XI
7 27
8 27
8 56
8 00
8 15
8 37
7 24
9 35
8 52
7 59
8 06
7 41
8 27
05
47
10
30
18
1902.0
1900.4
1887.3
1901.7
1901. 8
1856.7
1902.4
1900.4
1901.7
1901.9
1902. 5
1901. 8
1901. 8
1901.8
1871-4
1901.7
1902
1901
1901
1902
1901
1901. 6
1901.7
1901.
1902.
1900.
1897.
1901.
1856.
1901.
1884,
1903- 3
1897.6
1871.5
1900.3
1901.7
1901-. 7
1856.7
1900.5
1900.3
1901.7
1906. 6
1901.7
1900.3
1900.5
1903.3
1900.4
1903- 3
1900.3
1906. 6
1900.3
1900.5
1900.5
1871.6
1900.5
1900. 5
1900. 6
1900.4
1900.5
1900.3
1892. o
1900. 3
1900.5
1844- 3
1900.3
1900.5
1900.3
1900.6
Observed
Ded'n
Incl'n
H. Int.
/
f
c. g. s.
4 26 w
4 17. I W
69
08.6
.2103
3 02. 9 w
68
56.5
. 2111
3 29.3 W
68
18.7
. 2207
3 09.4 W
68
40.8
.2148
I 37.5 w
70
01.5
. 2108
3 35. 7 W
69
14.6
. 2IOI
I 24. 7 w
68
58.8
. 2130
4 41- 7 W
68
45-3
. 2128
3 54.4 W
68
49.2
. 2140
2 02.5 w
68
44.1
.2159
2 17. oW^
68
35.6
. 2184
I 25. I W
68
30.9
3 311 W
69
02. 6
. 2146
2 49.3 w
69 46.8
. 2122
2 24. 8 W
68
56.2
.2134
I 25.4 w
69
10.
. 2111
4 10. 3 W
69
04.1
.2113
3 46. 7 W
68
55-
.2141
I 42. oW
68
57.7
. 2126
344.0W
68
55.4
.2127
3 45.0 W
69
05.0
. 2116
4 19.5 W
68
45-5
.2172
2 43.7 w
69
20.8
.2113
442 w
I 52. 8 W
69
12.6
. 2109
4 44.9 W
69
25.9
.2088
3 50. 8 W
69
05.6
.2114
2 03. 3 W
70
21.2
. 2069
2 36.7 w
69
30.4
.2086
I 05. I W
4 12.8 W
69
19.3
.2094
2 06. oW
69
32.0
. 2092
3 03. 2 W
70
11.6
.2090
2 01 W
69
II.
. 2111
5 22.3 W
69
03.2
•2137
4 28 W
69
12.8
2 18. 4 W
70 31-
.2051
2 26. 7 W
69
25.8
.2088
» _ -- _
69
22. 2
- _ __
5 02. I W
69
25- 1
.2103
3 50. W
69 47.2
.2047
3 37-2 W
69
42.0
. 2062
3 32. 1 W
69
33- 1
•2077
2 25.4 w
69
25.0
. 2098
4 35-6W
69 33-5
. 2084
2 33.8 W
69
39.3
. 2070
4 41.8 W
69 36- 1
.2079
2 55. 1 w
7»
31-3
. 1961
5 02. 2 W
69 48.0
■2055
4 12. oW
69
47.9
. 2061
3 25.6 W
69
49-7
.2059
2 52. 4W
69
45-3
. 2061
I 46. 8 W
7«
40. 2
. 2024
453.7W
69 49-3
. 2062
3 09. 8 W
69
50.9
.2052
4 20. 4 w
69
45- 1
. 2060
2 55- oW
69
37-4
•2079
2 58. 2 W
69
49.2
• 2054
2 00.8 W
70
17.2
.1992
.
70
II. 6
.2152
3 42.7 W
70
23.0
3 20. 7 W
70
06.1
.2032
-
70
55-5
. 2029
8 25. 7 W
70
10. 6
•2045
3 40. W
70
14- 3
. 2024
4 17.1 vv
70
12.4
•2033
4 35.3 W
70 03.4
•2044
Reduced to 1905.0
Ded'n
Ind'n !h. Int.
4 36 W
4 32 W
4 08 W
3 40W
3 21 W
438W
3 44 W
1 41 W
452W
4 05 W
2 10 W
2 28 W^
1 36 W
3 42 W
4 54W
2 37 W
I 35 W
4 22 W
3 58 W
1 50 W
3 55W
3 56 W
431W
2 56 W
4 51W
2 10 W
5 loW
4 02 W
4 59W
2 49 W^
20 W
18 W
34 W
04 W
18 W
5 34W
4 40W
5 13 W
2 43 W
5 HW
345W
3 49W
3 49W
2 42 W
4 40 W
2 50 W^
4 48 W^
3 II W
4 57W
4 28 W
3 40W
09 W
46 W^
09 W
25 W
34 W
10 W
14 W
17 W
3
3
5
3
4
3
3
2
3 58 W
3 36W
8 41 W
3 55 W
4 32 W
4 48W
69 II
68 48
68 22
68 43
69 II
69 17
69 03
68 48
68 52
68 47
68 38
68 33
69 05
69 06
68 59
69 12
69 06
68 58
69 00
68 58
69 07
68 48
69 23
69 16
69 28
69 08
69 31
69 33
69 21
69 35
69 32
69 15
69 05
69 15
69 37
69 29
69 25
69 27
69 46
69 44
69 36
69 28
69 34
69 42
69 37
71 34
69 47
69 50
69 52
69 48
70 58
69 52
69 54
69 47
69 41
69 51
70 20
70 10
70 25
70 09
70 12
70 13
70 17
70 15
70 06
c. g. s.
2089
2086
2196
2138
2092
2093
2116
2118
2130
2151
2174
2136
2110
2124
2103
2102
2131
2118
2116
2105
2161
2102
2094
2068
2103
2078
2075
2089
2071
2087
2096
2126
2060
2073
2093
2052
2052
2062
2084
2078
2056
2074
1946
2060
2046
2045
2047
2013
2048
2038
2046
2064
2040
1979 I
2127
2018
2008
2030
2010
2019
2028
Source
CS.d
CSd2
CS.di
CS.d2
CS.d2
CS.d I
CS.d2
CS.d2
CS.d2
CS.d2
CS.d2
CS.d2
CS.d2
CS.d2
CS.di
CS.d2
CS.d2
CS.d2
CS.d2
CS.d2
CS.d2
CS.d2
CS.d2
CS.d2
CS.d
CS.d2
CS.d2
CS.d2
CS.di
CS.d2
CS.d
CS.3
CS.d2
CS.di
CS.d2 •
CS.d2
CS.d2
CS.di
CS.d2
CS.2
CS.d2
CS.7
CS.d2
CS.d2
CS.d2
CS.3
CS.d2
CS.d2
CS.d2
CS.7
CS.d2
CS.d2
CS.d:^
CS.di
CS.d2
CS.d2
CS.d2
CS.d2
CS.d2
CS.d2
CS.I
CS.d2
CS.d2
CS.i
CS.d2
CS.d2
CS.d2
CvS.d2
68 MAGNETIC TABLES AND CHARTS FOR 1905.
Table I. — Observed magnetic elements and the valves reduced to January i, 1903 — Continued.
VIRGINIA— Continued
Observed
Reduced to loo^.o
i
Station
Lati-
tude
Longi-
tude
Date
N.
W.ofGr.
Ded'n
Incl'n
H. Int.
Decl'n
Ind'n
H. Int.
1
/
/
/
/
1
c. g. s. ,
/
/
c.g.s.
Woodstock
38 52
78 32
1897- 6
3 45.5 W
70 16. 8
. 2029 ,
409W
70 20
.2010
CS.d2
Bull Run
38 53
77 42
1871.8
4 21. 3W
71 18.9
.1998
6 27 W
70 38
.1988
CS.di
Cherrydale
38 54
77 07
1900.5
5 19. I W
70 37.9
. 1994 1
5 33 W
70 38
.1981
CS.d2
Rectortown
38 54
77 53
1900.4
3 12.9W
70 22.3
. 2014
3 28W
70 25
. 2000
CS.d2
Peach Grove
38 55
77 14
1869. 8
2 54. 7 W
71 05.0
. 2000 1
5 04 W
70 21
. 1994
CS.di
Front Royal
38 55
78 12
1900.5
352.8W
70 14.7
.2021 1
4 06W
70 17
.2008
CS.d2
Strasburg
38 59
78 21
1900. 4
3 50.6 W
70 21.8
. 2016
405W
70 24
. 2002
1 CS.d2
Mt. Weather, pier E
39 04
77 53
1907.4
3 38. 7 W
70 40. 7
.1984
3 31 W
70 39
•1993
CS.7
Mt. Weather
39 04
77 53
1907.4
4 06.9 W
.1958
4 ooW
■ 1967
CS.7
Leesburg
39 07
77 34
1900.6
4 46. 2 W
70 29.5
.2003
5 ooW
70 31
. 1990
; CS.d2
Round Hill
39 08
77 46
1900. 6
4 24.4 W
70 32.7
1995
4 38 W
70 34
. 1982
1 CS.d2
Winchester
39 10
78 10
1900.4
4 24. W
70 30.9
. 2002
4 39W
70 33
. 1988
CS.d2
1
WASHLVGTON
Vancouver, nr. Fort
Lower Cascades
Dalles
Stevenson
Near Wallula
Walla Walla
Magnetic Sta.
Wallula
Dry Creek
Ainsworth
C. Disappointment
Pomeroy
Tukannon R.
North Yakima
Sixty Mile WeU
Colfax
Cow Creek
Ellensburg
Olympia
Olympia(HowardA)
Nisqually
Lugenbeel Cr.
Hot Springs
Tacoma
Sprague
Wilson Creek
Port Orchard
Leavenworth
Seattle
Spokane Falls
Spokane
Peon Prairie
Spokane Ferry
Everett
Chemikane R.
Port Townsend
Port Angeles
Striped Peak
Dungeness
Slip
Cape Flattery
Waadah
Mount Vernon
Classet
Tatoosh
San Juan Island
Bellevue
Colville
45 38
45 39
45 40
45 41
46 02
46 03
46.03
46 07
46 09
46,14
46 17
46 31
46 32
46 34
46 49
46 52
46 53
47 00
47 02
47 03
47 07
47 09
47 12
47 26
47 32
47 36
47 40
47 40
47 42
47 44
47 49
47 58
48 00
48 07
48 08
48 10
48 II
48 16
48 22
48 23
48 24
48 24
48 24
48 28
48 32
48 33
/
122 40
1895. 2
122 00
1881.8
120 49
1860.4
121 52
1906.5
119 00
1860.0
118 22
1905- 6
118 25
1860.0
118 55
1881.7
118 18
1860.0
119 03
1881.6
124 03
1895. 2
117 40
1881.7
118 00
1860.0
120 32
1906.2
118 50
1881.6
117 22
1905-6
118 10
1860.0
120 32
1906. 2
122 54
1881.8
122 53
1906. I
122 38
1859. I
118 06
1860.0
121 33
1906. 2
122 27
1906. I
118 00
1881.6
119 00
1906.3
122 38
1906.6
120 33
1906. 2
122 18
1906.0
117 26
1881.7
117 30
1906.6
117 14
1860.0
117 49
1860.0
122 13
1900.9
"7 45
1861.4
122 45
1904. I
123 26
1904. 3
123 41
1893.5
123 07
1892.7
124 14
1893.6
124 38
1 88 1. -8
124 36
1893. 6
122 21
1900.9
1124 40
1893- 7
124 44
1893. 7
122 58
1897.6
123 10
1894.4
1»I7 53
1906. 6
21 32.4 E
19 29. 3 E
21 25.0 E
19 46 E
21 37.4 E
20 00 E
19 55-7 E
20 13 E
21 24.5 E
21 55- 8 E
21 33.5 E
20 55 E
22 35.8 E
22 46. 9 E
22 36. I E
21 01 E
22 52. 2 E
21 34.6 E
23 20. 5 E
21 23 E
20 55 E
22 17.9 E
23 06.6 E
22 55.4 E
22 42. 2 E
22 41.6 E
22 32.0 E
23 16.8 E
21 39-4 E
23 21.8 E
21 53 E
22 07 E
23 15-3 E
21 28 E
23 15. 7 E
23 40. 7 E
23 12.3 E
23 26. I E
23 30. 6 E
22 44. 2 E
23 26. 3 E
23 08 E
23 06. 4 E
23 45- I E
23 3I-4E
26 48 E
23 38. 2 E
69 17.0
70 04. 5
69 30.3
70 29. 2
70 24.9
70 46. 8
70 37. 8
69 16.5
70 20. 2
70 21.6
70 12. 2
70 44-8
71 16.2
71 01. 2
70 32.6
70 22.4
70 40.0
71 18.6
70 23. I
70 37- 9
71 05.8
72 01. o
70 55-6
71 02.8
70 51- 6
72 13
71 49
72 05
71 52
71 07
72 04
71 15
70 57
71 04.4
71 20.4
71 II. o
72 22.6
c. g. s.
. 2091
.2073
.2043
. 2042
. 1981
.2025
.1978
.1997
. 2064
.2032
. 2020
995
992
938 ,
983 '
965 I
975
987
2002 I
950 I
971 I
958
982
875
944
930
934
923
877
890
905
919
894
900 I
940 1
1911 I
191 1 li
1909 I
1815 ,.
22 01 E
20 13 E
21 20 E
20 31 E
21 36 E
20 45 E
20 31 E
20 58 E
22 00 E
22 23 E
22 07 E
21 31 E
22 32 E
23 22 E
22 34 E
21 35 E
22 48 E
22 24 E
23 17 E
23 02 E
21 38 E
22 14 E
23 03 E
23 28 E
22 38 E
22 36 E
22 28 E
23 14 E
22 13 E
23 17 E
22 22 E
22 42 E
23 28 E
22 07 E
23 19 E
23 43 E
23 40 E
23 57 E
23 59 E
23 36 E
23 55 E
23 21 E
23 34 E
24 13 E
23 52 E
27 15 E
23 33 E
69 12
70 00
69 30
70 29
70 24
70 46
70 36
69 12
70 32
70 28
70 13
70 46
71 16
71 03
70 33
70 23
70 26
71 17
70 24
70 39
71 19
72 01
70 56
71 03
70 52
72 26
71 49
72 13
71 59
71 05
72 II
71 14
70 57
70 58
71 16
71 05
72 23
c. g. s.
2090 '
2056 I
2002 I
2042 I
1981 .
2004 ij
1956 11
1977 ,1
2068 !
2012 I
1998 "
1995
1972
1938
1961
1965
i960
1987
1950
1928
1971
1958
1962
1875
1944
1930
1934
1903
1877
1868
1883
1923
1871
1901
1941
1906
1915
1917
1815 1
CS.di
CS.di
CS.it
CS.7
CS.dJ
CS.6
CS.dt
CS.di
CS.dit
CS.di
CS.di
CS.di
CS.diJ
CS.6
CS.di
CS.6
CS.diJ
CS.6
CS.di
CS.6
CS.dit
CS.dit
CS.6
CS.6
CS.di
CS.6
CS.7
CS.6
CS.6
CS.di
CS.7
CS.dit
CS.diJ
CS.d2
CS.dit
CS.4
CS.4
CS.d
CS.d
CS.d
CS.di
CSd
CS.d2
CS.d
CS.d
CS.d2
CSd
CS.7
t Boundary Survey, R. W. Haig, observer, Phil. Trans. R. S., 1864; revised results, 1900.
X U. S. Northwest Boundary Commission; J. S. Harris, observer; revised results, 1900.
MAGNETIC ELEMENTS IN THE UNITED STATES. 69
Table I. — Observed magnetic elements and the values reduced to January j, 1903 — Continued.
WASHINGTON— Continued
station
Mat
Slope
Colville depot
Bamboo
Windlass
Shaw Island
Goose
Clover
Root
Fairview
Spieden
Morse Island
Limestone
Fort Colville
Middleton
Doughty
Dry
New Whatcom
Patos
Magnetic Sta.
Do.
Pend d'Oreille
Columbia R.
Waneta
Sheep Creek
Russell
Laurier
Carson
Magnetic Sta.
Midway
Sawmill Creek
Camp Osoyoos
Osoyoos Lake
Magnetic Sta.
Similkameen R.
Similkameen R.
m. west
Pasayten River
Skagit
Skagit River
Depot Creek
Silicia Creek*
Do.*
Lemolo
Sumas
Blaine
Point Roberts
Do.
16
48 33
48 33
48 34
48*34
48 35
48 36
48 36
48 36
48 37
48 38
48 38
48 38
48 39
48 40
48 42
48 43
48 43
48 44
48 47
48 59
48 59
49 00
49 00
49 00
49 00
49 00
49 00
49 00
49 00
I 49 00
49 00
49 00
49 00
49 00
49 00
Longi-
tude
W.ofGr.
49
00
49
00
49
00
49
00
49
00
49
01
49
00
49
00
49
00
49
00
48
59
49
00
22 57
23 00
17 52
23 01 I
23 10
22 58
23 02
23 10
22 57 I
23 02 I
23 06
23 II
23 00 ;
18 05 I
23 04 I
22 57
23 02
22 29
22 58
21 42
21 57
17 23
17 37
17 38
17 51
18 14
18 14
18 30
18 44
18 46
19 10
19 24
19 26
19 35
19 41
20 04
20 33
21 03
21 06
21 19
21 36
21 36
22 07
22 16
22 44
22 58
23 04
894.6
894.6
860.0
894.6
894.5
895.6
894.5
894.5
894.5
894.5
894. 5
894.4
894.5
861.3
894.5
894.5
894.5
900.9
894.5
860.0
860.0
905.8
901.8
905. 8
905.8
901.6
905.8
905.9
860.0
905.7
905.7
860.0
905. 7
860.0
905.7
905.7
905.7
860.0
905.6
905.6
901.4
905.6
905.6
905.6
905.5
860.0
905.6
Observed
Decl'n
Incl'n
23 18
23 22
22 31
23 42
23 20
23 43-
23 33
22 50
23 II
23 55
23 29
23 30
23 36
21 40
22 36
23 27
25 II
23 20.
23 04
22 47
22 39
23 43.
23 18.
23 24.
23 17.
23 II.
23 23.
24 02.
22 07
23 31.
23 41.
E
E
E
6E
E
E
E
E
E
E
E
E
E
E
E
6E
E
E
E
oE
2E
8E
oE
7|
8 E
E
4E
6E
24 03. 4 E
23 34 E
24 38. 3 E
24 30. 2 E
24 49. o E
22 46. 7 E
23 33. I E
26 45. 8 E
29 00. o E
23 09.0 E
23 46. 8 E
24 21.6 E
22 39 E
24 32. 9 E
72 30.6
71 27.5
H. Int.
c.g.s.
1833
1894
72 41.9
71 31.0
72 52.2
72 47.8
72 40. 3
72 43.3
72 38.0
72 29.5
72 26. 2
72 35.0
72 25.8
72 08. 7
72 13.2
71 40.9
72 39.6
72 39.3 ,
71 33-6 I
I
70 58.0 I
71 47-5
71 38. I !
71 58.6
71 45.6
71 36. I j
1841
1895
1776
1787
1801
1794
1785
1815
1802
1807
1820
, 1829
, 1884
1813
1802
1882
1965
, 1861
. 1892
1875
. 1896
. 1876
Reduced to 1905.0
Decl'n
23 45 E
23 49 E
23 13 E
24 09 E
23 47 E
24 08 E
24 ooE
23 17 E
23 38 E
24 22 E
23 56 E
23 57 E
24 03 E
22 24 E
23 03 E
23 54 E
25 38 E
23 34 E
23 31 E
24 23 E
24 19 E
23 40 E
23 29 E
23 22 E
23 hE
23 33 E
23 21 E
24 00 E
22 52 E
23 29 E
23 39 E
24 01 E
24 32 E
24 36 E
24 28 E
24 47 E
22 45 E
23 31 E
26 58 E
28 58 E
23 07 E
23 45 E
24 20 E
24 15 E
24 31 E
Ind'n
72 37
71 21
72 48
71 27
72 52
72 48
72 40
72 43
72 38
72 30
72 26
72 28
72 26
72 09
72 13
71 41
72 20
72 40
71 34
70 58
71 48
71 38
71 59
71 26
71 37
H. Int.
c. g. s.
. 1811
. 1903
1818
1900
• 1776
.1787
. 1801
•1794
■1785
. 1815
. 1801
. 1807 ]
. 1820
.1828
. 1884
.1778
. 1802
.1881
. 1964
. i860
. 1892
. 1875.
.1861
.1876
Source
CS.d
CS.d
CS.dit
CS.d
CS.d
CS.d I
CS.d
CS.d
CS.d
CS.d
CS.d
CS.d
CS.d
CS.dit
CS.d
CS.d
CS.d
CS.d2
CS.d
CS.dt
CS.dt
CS.6
CS.d
CS.6
CS.6
CS.d
CS.6
CS.6
CS.dt
CS.6
CS.6
CS.it
CS.6
CS.d
CS.6
CS.6
CS.6
CS.it
CS.6
CS.6
CS.d
CS.6
CS.6
CS.6
CS.6
CS.dit'
CS.6
WEST VIRGINIA
,
. /
/
' ic.g.s.
/
/
c. g. s.
Princeton
37 22
81 07
1900.4
I 23. I w
68 50.2 1. 2147
I 36 w
68 54
.2134
CS.d2
Welch
37 26 , 81 35
1900.4
2 20. 4 w
68 32.6
.2182 1
2 32 W
68 37
. 2169
CS.d2
Baileysville
37 36
81 40
1900.4 ,
I 42.4 w
68 55. 7
.2156 1
1 54W
69 00
.2143
CS.d2
Hinton
37 40
80 53
1900.3
I 24.7 w
68 51.5
.2142
I 39 W
68 56
. 2129
CS.d2
Williamson
37 40
82 16
1900.4
I 45- 8 W
68 54.2 .2161
I 57 w
68 59
.2148
CS.d2
Oceana
37 42
81 38
1900.4
I 26. I w
69 09.0 .2134
I 39 W
69 13
. 2121
CS.d2
Alderson
37 43
80 39
1898.4
I 58.6 w
69 01. 6 . 2149
2 21 w
69 07
.2132
CS.d2
Beckley
37 47 ! 81 12
1900.3
I 48. 2 w
69 02. 8 . 2129
2 02 w
6907
. 2116
CS.d2
Lewisburg
37 48 80 27
1900.3
I 56. 2 w
69 09. .2116
2 12 w
69 13
.2103
, CS.d2
Logan
37 51 1 81 59
1900.4
55. I w
69 13.0 .2107
I 07 w
69 17
.2094
CS.d2
Dunlow
38 02
82 26
1898.4
I II. 4W
69 23.0
. 2I20 1
I 28 W
69 28
.2103
1 CS.d2
* Local disturbance..
t Boundary Survey, R. W. Haig, observer; Phil. Trans. R. S., 1864; revised results, 1900.
tU. S. Northwest Boundary Commission; J. S. Harris, observer; revised results, 1900.
70 MAGNETIC TABLES AND CHARTS FOR 1905.
Table I. — Observed magnetic elements and the values redticed to January J, 1905 — Continued.
WEST VIRGINIA— Continued
SUtion
Lati-
tude
N.
Loxiffi-
tude
W.ofGr.
Date
Observed
Reduced to 190.
;.o
Ded'n
Incl'n
H. Int.
Decl'n
Incl'n
H. Int.
Source
Fayetteville
/
38 03
/
8i 06
1900.4
f
2 01.6 W
/
69 19.6
c.g.s.
. 2100
/
2 15 W
/
69 24
c. g. s.
.2087
CS.d2
Madison
38 04
81 48
1900.5
I 24. 6 W
69 13-3
.2118
I 38 w.
69 17
.2105
CS.d2
Marlington
38 13
80 06
1900.5
I 47- 2 W
69 30. 1
.2096
2 02 W
69 34
.2084
CS.d2
Wayne
38 13
82 26
1898.4
44.6 W
69 32.0
. 2II6
I ooW
69 37
.2099
CS.d2
SummersviUe
38 17
80 51
1900.4
I 13.0 W
69 44.8
. 2082
I 26 w
69 49
. 2069
CS.d2
Hamlin
38 17
82 06
1900.5
I 50. 6 W
69 31.8
.2117
2 02 W
69 36
.2104
CS.d2
Charleston
38 21
8x 38
1900.4
2 06. 7 W
69 32.4
• 2095
2 20W
69 36
.2082
CS.d2
Camden on Gauley
38 22
80 35
1900.5
69 37-3
• 2095
69 41
.2082
CS.2
St. Albans, E. base
38 23
81 48
1893. I
I 06. 7 W
I 45 W
CS.d
St. Albans, W. base
38 23
81 50
1893. I
I 34. 5 W
2 13 w
-_
CS.d
Ryan
38 24
81 48
1892. 9
I 10. 8 W
I 50 w
.-
CS.d
Himtington
38 26
82 27
1898.4
51.2 W
70 10.8
. 2067
I 07 W
70 16
.2051
CS.d2
Addison
38 28
80 24
1900-5
2 26. 2 W
69 46. I
.2078
2 40W
69 50
.2065
CS.d2
Clay
38 28
81 05
1900.4
I 15.9 w
69 51.4
.2068
I 30 w
69 56
•2055
CS.d2
Mingo
38 29
80 03
1900.5
2 30. w
69 49.4
.2062
2 44W
69 53
.2049
CS.d2
Travellers Repose
38 32
79 47
1900.5
2 34. 6 W
69 54.7
. 2060
2 48 w
69 57
.2046
CS.d2
Winfidd
38 32
81 55
1904.6
1 44.0W
69 54-4
.2061
I 46 W
69 55
. 2060
CS.5
Cave
38 33
79 27
1900.4
2 54.9 w
69 53-3
.2056
3 loW
69 56
.2043
CS.d2
Franklin
38 39
79 20
1900.4
2 56. 2 W
69 59-3
.2050
3 II W
70 02
•2037
CS.d2
Pickens
38 39
80 13
1898. 5
2 45. 8 W
70 02. 7
.2072
3 07W
70 08
.2055
CS.d2
Sutton
38 39
80 43
1898.5
2 16.3 w
69 54-4
.2082
2 36 w
69 59
.2065
CS.d2
Brushynin
Beverly
38 50
79 15
1900.4
3 05.3 W
70 07. 9
.2037
3 20W
70 II
. 2024
CS.d2
38 50
79 53
1898.6
2 45. 3 W
70 00.6
.2047
3 06W
70 06
.2031
CS.d2
Ripley
38 50
81 43
1900.4
1 39. 2 W
70 14.6
.2048
I 52 w
70 18
•2035
CS.d2
Point Pleasant
38 50
82 09
1864. I
I 34.9 E
52 W
__ _ _
CS.d
Glebe
38 59
79 13
1900.4
3 19.3 W
70 13- 2
.2033
3 34W
70 17
. 2019
CS.d2
Buckhannon
38 59
80 14
1898. 5
3 00.0 W
70 05. 8
.2058
3 18W
70 10
. 2042
CS.d2
Weston
39 02
80 28
1898.5
2 31.3 w
70 12. 8
. 2061
2 50W
70 17
•2045
CS.d2
Mason City
Moorefidd
39 02
82 04
1904.6
41.9 w
70 30. 7
.2013
044W
70 31
. 2012
CS.5
39 04
78 58
1900.4
3 18. 6 W
70 24.0
. 2017
3 33W
70 26
.2003
CS.d2
Hendricks
39 04
79 38
1898.6
2 55.3 w
70 17.6
.2028
3 14W
70 22
. 2012
CS.d2
Philippi
39 08
80 03
1898. 6
3 27. w
70 12.0
.2042
345W
70 16
.2026
CS.d2
Falls
39 10
79 07
1900.4
3 28.9 W
70 27. 4
.2015
343W
70 30
. 2002
CS.d2
Harrisville
39 "
81 03
1898.5
I 25.8 W
70 19- 3
.2037
I 45 w
70 23
. 2021
CS.d2
Parkersburg
39 16
8i 34
1898.5
I 13. 7 W
70 36. 4
.2025
I 30 W
70 41
.2009
CS.d2
Charles Town
39 17
77 51
1900. 2
4 01.3 W
70 40.0
• 1974
4 16W
70 42
. 1961
CS.d2
Clarksburg
39 17
80 20
1898.5
2 49.5 w
70 29.0
.2032
3 09W
70 33
.2016
CS.d2
West Union
39 18
80 47
1904.6
48. W
70 41.5
.2008
50W
70 42
. 2007
CS.5
Romney
39 21
78 43
1900. 2
4 03.6 W
70 37- 5
.1997
4 18 W
70 40
.1983
CS.d2
Grafton
39 22
80 01
1898.6
3 29.0 W
70 25. 6
.2036
3 48 W
70 30
. 2020
CS.d2
Martinsburg
39 27
77 58
1900. 2
4 36. 8 W
70 28.2
.1998
452W
70 31
.1984
CS.d2
Keyser
39 27
78 59
1898. 6
3 29.4 W
70 41.4
.1998
349W
70 45
. 1982
CS.d2
Danid's farm
39 28
79 03
1898.5
3 III W
3 31 W
MS.II
Kingwood
39 28
79 41
1900. 2
3 41.8 W
70 29. 3
. 2020
3 55 W
70 32
.2006
1 CS.d2
Paw Paw
39 32
78 26
1899.4
4 10. 8 W
70 47-
. I98I
4 29W
70 50
.1968
CS.d2t
Morgantown
39 38
79 57
1900.5
3 31.8 W
70 53- 4
• 1997
344W
70 56
.1984
CS.d2
Cameron
39 50
80 34
1864.0
24. E
2 23 W
CS.d
Wheeling
40 04
80 44
1898. 6
1
I 01.3 W
71 35.2
.^938
I 18 W
71 39
. 1922
CS.d2
WISCONSIN
1
/ /
t
Elkhom
42 41 88 32
1905.5
I 42.5 E
Milwaukee
43 04 87 52
1902. 8
3 32.8 E
Milwaukee, A
43 04 87 52
1904. 8
3 26.4 E
Madison
43 04 1 89 25
1905-5
4 54. 6 E
Prairie du Chien
43 04 91 09
1900. 8
5 56. 6 E
Richland Center
43 21 90 23
1905- 5
5 55-3 E
Sheboygan
43 44 87 43
1904.7
2 57-2 E
Mauston
43 48 90 05
1905- 5
5 14- 7 E
Fond du Lac
43 47 I 88 28
1905.5
3 25.9 E
Montello
43 48 89 18
1905-5
4 34. 6 E
La Crosse
43 49 1 91 14 •
1900. 8
5 31. 8E
Manitowoc
44 06 87 40
1904.7 1
2 44. E
^ ' c.g.s.
1
1 ° '
/
c.g.s.
73 II. 4 1810
' I 43 E
73 II
.1811
CS.6
73 42.0 I.1773
1 3 32E
73 43
.1769
CS.3
73 42 ,. 1726
, 3'^g
73 42
. 1726
1 LS.3E
73 47. I '. 1770
1 4 55E
73 47
- 1771
CS.5
73 05.6 1. 1824
1 5 54E
73 08
.1816
CS.d2
73 31.5 .1764
1 5 56E
73 31
-1765
CS.5
74 38 1. 1637
1 2 57E
74 38
-1637
.LS.3E
73 56.5 I-1719
5 15E
73 56
. 1720
CS.5
73 49-7 '• 1727
1 3 26E
73 49
. 1728
1 CS.6
74 04.0 1. 1717
, 4 35E
74 04
. 1718
CS.5
73 47.3 .1733
' 5 30E
73 50
. 1726
CS.d2
74 20 ,. 1678
2 44E
74 20
.1678
LS.3E
t Joint auspices of U. S. Coast and Geodetic Survey and Maryland Geological Survey.
MAGNETIC ELEMENTS IN 'THE UNITED STATES. 71
Table I. — Observed magnetic elements and the values reduced to January i, 190^ — Continued.
WISCONSI N— Continued
Station
Alma
Grand Rapids
Green Bay
Maxvilla
Maiden Rock
Neillsville
Ellsworth
Shawamo
Sturgeon Bay
Chippewa Fsuls
Wausau
Marinette
Mountain
Osceola
Prentice
Rhinelander
Shell Lake
Grantsburg *
Florence
Ashland
Superior City
Lake Superior
Superior Entry
Port Wing
Lake Superior
Do.
Do.
Do
Do.
Do
Presque Isle
Knife Island
York
South Twin
Rocky
Lati-
tude
N.
44 21
44 24
44 30
44 32
44 33
44 34
44 43
44 47
44 48
44 55
44 57
45 04
45 10
45 19
45 32
45 38
45 46
45 46
45 55
46 35
46 40
46 42
46 43
46 47
46 48
46 51
46 52
46 54
46 54
46 54
46 55
46 57
46 59
47 02
47 02
Longi-
tude
W.ofGr.
Date
/
91 48
89 47
87 59
91 58
I
I
I
I
92 12
I
90 35
I
92 29
88 37
87 19
I
I
I
91 23
89 38
87 40
88 30
I
I
I
I
92 41
I
90 17
89 24
I
I
91 54
I
92 40
88 16
90 55
n
92 04
I
91 50
li
92 01
I<
91 23
90 48
91 42
14
92 00
91 06
14
91 45
14
91 54
14
90 37
14
91 47
14
90 52
14
90 39
14
90 40
H
893.5
905.6
891.6
893.6
893.5
905.6
893.5
905.7
904.7
905.6
905- 7
905.7
905.7
905.7
891.6
905.6
905.6
905.6
905.7
905.6
880.6
902.5
902. 2
902.0
902.5
902.5
902.5
902.5
902.5
902.5
901.7
902.0
902.8
902.8
902.8
Observed
Decl'n
Ind'n H. Int
6
5
6
3
I
6
5
2
2
6
4
o
6 50. o E
5 27. 6 E
4 00. 9 E
6 47. 7 E
59.1 E
26. 7 E
51. 9E
32.2 E
46.4 E
18. 6 E
59. 3 E
32. 8 E
40. 1 E
II. I E
07. 3 E
34. 9 E
4 30. 6 E
9 21.8 E
2 28.3 E
5 39.0 E
9 45. 4 E
8 30 E
7 50
6 24
5 00
8 36
8 30
7 36
26 24*
15 36* ^
4 34- o E
9 06 E
4 57-2 E
4 39. 7 E
4 45. 7 E
74 57. 8
74 47. 6
74 27.3
74 55. 2
.1626
75 23
.1590
74 51- I
.1652
75 21.5
.1618
75 "-2
. 1611
75 17-1
.1598
74 44. 6
.1688
75 03. 8
. 1607
75 54.9
.1569
75 09.0
.1611
75 31-2
. 1605
75 56.7
.1525
76 21. 2
.1517
76 26. 1
.1504
c. g. s.
.1618
1654
1684
Reduced to 1905.0
Decl'n
Ind'n
H. Int.
/
/
c. g. s.
6 27E
_ _ __
5 28E
74 57
. I6I9
3 20E
74 47
. 1652
6 24E
>_ _-
6 35E
__ __
5 27E
74 26
.1685
6 28E
3 33E
74 55
. 1627
I 46 E
75 23
.1590
6 19E
74 51
.1653
6 ooE
75 21
. I6I9
2 34 E
75 II
. I6I2
2 41 E
75 17
■ 1599
6 II E
74 44
.1689
3 32E
74 59
. 1603
35E
75 55
.1570
4 30E
75 09
. I6II
9 21 E
75 31
.1606
2 28 E
75 57
• 1525
5 39E
76 21
.1517
8 30E
76 14
.1499
8 29E
_- __
7 49E
-- --
6 23E
-_ __
4 59E
-. _-
8 35E
_- --
8 29E
__ __
I ^^1
__ __
26 23 E
__ --
15 35 E
__ __
4 32E
__ __
9 05E
__ __
4 56E
_ _ __
__-_
4 38E
_- _-
4 44E
-- --
Source
CS.d
CS.6
CS.di
CS.d
CS.d
CS.6
CS.d
CS.6
LS.3E
CS.6
CS.6
CS.6
CS.6
CS.6
CS.di
CS.6
CS.6
CS.6
CS.6
CS.6
CS.di
UE.3E
UE.3E
UE.3E
UE.3E
UE.3E
UE.3E
UE.3E
UE.3E
UE.3E
LS.3E
UE.3E
LS.3E
LS.3E
LS.3E
WYOMING
/
/
/
/
cg.s.
/
/
cg.s.
Sherman
08
105 24
1872.6
' 15 52. 6 E
68 53.3
.2193
15 02 E
68 56
.2163
CS.di
Cheyenne
09
104 50
1906.5
; 14 59. 8 E
69 08.6
.2145
1456E
69 08
.2148
CS.7
Laramie
19
105 36
1878. 7
15 07. 4 E
._
14 42 E
-- --
CS.d
Fort Bridger
20
no 24
1858.9
! 19 37 E
68 05
17 34 E
68 13
CS.dit
Carter
26
no 26
1878.8
, 17 06.3 E
_ _ __ _ _
_ _ _ _
17 08 E
- - _-
CS.d
Green River
32
109 28
1905.4
1 16 49. 6 E
68 25.8
.2180
16 48 E
68 26
.2181
CS.5
Point of Rocks
43
108 58
1878.8
16 17.8 E
__ __- _
- -__
16 10 E
-- __
CS.d
Fort F. Steele
47
106 57
1878.7
16 10. 1 E
69 00. 2
. 2170
15 49 E
69 08
.2143
CS.di
Creston
48
107 45
1878.8
16 03. 8 E
_
15 48 E
_ _ _ _
CS.d
Rock Creek
50
105 51
1878. 7
15 45. 8 E
_ _
15 21 E
_ _ __
CS.d
Wheatland
03
104 57
1905.6
15 09. 4 E
69 50.1
.2081
15 08 E
69 50
.2082
CS.6
Cokeville
04
no 59
1905.4
' 17 52.0 E
68 39.0
.2161
17 50 E
68 39
.2162
CS.5
Fort Laramie
12
104 31
1858.7
j _.
70 03
I
70 II
CS.it
Little Sandy Creek
15
109 40
1858.8
20 44 E
69 00
18 37 E
69 08
CS.dit
South Pass
28
108 47
1906.5
16 19. 1 E
69 00.5
.2137
16 15 E
68 59
. 2140
CS.7
Sweet Water River
30
108 35
1858.8
19 56 E
69 35
17 34 E
69 43
CS.dit
Myersville
34
108 08
1906. 6
16 45.6 E
69 41.2
.2083
16 41 E
69 40
.2086
CS.7
La Bonte River
35
105 22
1858.8
18 23 E
70 15
15 46 E
70 23
CS.dit
Sweet Water River
38
107 25
1858.8
19 41 E
69 53
17 16 E
70 01
CS.di ■
Greasewood Creek
40
107 07
1858. 8
20 24 E
70 01
18 33 E
70 09
CS.dI•
Douglas
Lander
44
105 22
1905.6
15 28.3 E
70 22. 2
.2030
15 27 E
70 22
.2031
CS.6
50
108 40
1906.5
1 16 59.4 E
69 56. 2
. 2065
16 55 E
69 55
.2068
CS.7
Casper
51
106 20
1906.5
15 57. 6 E
70 28. I
•2045
15 54 E
70 27
.2048
CS.6
West of Deer Creek
53
105 57
1858.8
. 18 28 E
70 29
15 51 E
70 37
CS.dit
♦ Local disturbance.
t J. H. Simpson, observer; J. B. Stone's
be reduced by 2° on account of index correction
Var., New York, 1878. The observed declinations require to
72 MAGNETIC TABLES' AND CHARTS FOR 1905.
Table I. — Observed magnetic elements and the values reduced to January i, 1903 — Continued.
WYOMING— Continued
Station
Powder River
Shoshone
Thermopolis
Newcastle
Mayoworth
Worland
Meeteetsee
Valley
Gillette
Buffalo
Sundance
Basin
Cody
Yellowstone Lake, A*
Do. B*
Arvada
Sheridan
Do.
Lovell
NE.comer Wjroming
Little Missouri River
Mileposts 283 & 284
Milepost 185
Milepost 42
Lati-
Longi-
tude
tude
Date
N.
W.ofOr.
•
/
/
43 02
106 59
1906.5
43 14
108 05
1906.6
43 41
108 13
1906.6
43 51
104 12
1905. 6
43 51
106 47
1906.6
44 02
107 59
1906.6
44 10
108 50
1906. 6
44 "
109 33
1906.6
44 17
105 29
1905.6
44 22
106 41
1906.6
44 25
104 23
1906.7
44 25
108 05
1906. 6
44 33
109 00
1906. 6
44 33
no 24
1892.5
44 33
no 24
1892.5
44 40
106 07
1906.7
44 50
106 58
1905.6
44 51
106 58
1906. 6
44 51
108 23
1906.6
45 00
104 03
1882.5
45 00
104 25
1882.5
45 00
105 20
1882.5
45 00
107 21
1882.5
45 00
no 12
1882.6
1
Observed
Dccl'n
17 02
17 25
17 39
15 21
16 42
17 03
18 01
18 05
16 32
17 16
14 37
18 01,
18 26.
20 57
16 43
17 14,
16 59
17 05,
18 05.
15 39-
16 II.
16 54-
17 57«
19 31
3g
2 E
oE
oE
1 E
4E
6E
2 E
1 E
^g
oE
9?
3E
2 E
4E
oE
2E
51
oE
oE
2 E
^i
2 E
Incl'n
ro 17.5
^O 08. 5
ro 39. 2
I 36.3
JO 59. 8
^o 57-9
ro 50. 2
28.4
1 38.2
1 33.8
2 04.5
I II. 9
1 22.4
2 17.4
H. Int.
Reduced to 1905.0
54-3
51.9
52.0
39.9
41.0
43.7
14.0
10.4
17.5
c. g. s.
.2056
2049
2025
■1937
1979 I
.1989
. 2000
. 2026
1935
1930
. 1901
1969
1941
■1855
•1903
.1903
. 1900
, 192 1
. 1889
. 1901
.1940
.1936
.1984
Decl'n
/
i6
58 E
17
21
K
17
34
E
15
20
H
16
38E !
16
59
E
17
57
E
18
01
E
16
31
E
17
12
E
14 33
E
17
57
H
18
22
E
21
18 E
17
04
E
17
10
E
16
57
E
17
01
E
18
00
E
15
20
E
15
52
E
16
40
E
17
55
E
19 42
E
70
16
70
70
71
07
38
36
70
59
70
57
70
49
70
71
27
38
71
33
72
03
71
II
71
21
72
22
71
53
71
52
71
71
72
51
38
46
72
43
72
10
72
07
17
15
H Int.
c, g. s,
2059
2052
2028
1938
1982
1991
2002
2028
1936
1932
1903
197 1
1943
1844
1905
1904
1902
1923
1871
1882
1922
1918
1965
Source
CS.7
CS.7
CS.7
CS.6
CS.7
CS.7
CS.7
CS.7
CS.6
CS.7
CS.7
CS.7
CS.7
CS.di
CS.d
CS.7
CS.6
CS.7
CS.7
CS.di
CS.di
CS.di
CS.di
CS.di
BRITISH NORTH AMERICA
Group I. — South of parallel 5^° N. and betiveen meridians 60° and 7^ W.
/
/
1
/
/
c.g.s.
/
/
c.g.s.
Negro Harbor
43 33
65 25
1859. 5
17 20 W
_- _ __- "
19 03 W
__ __
CO.d
Shelbourne Lt.
43 37
65 16
1859
5
17 47 W
-- . - __
---_
19 30 w
- _ -_
____
CO.d
Yarmouth
43 50
66 07
1881
9
17 49- 4 W
74 35
. 1602
18 29 w
73 52
. 1641
CS.di
Lunenburg
Weymouth
44 20
64 20
1902
5
20 00 W
20 07 w
._ _-
co.t
44 24
66 00
1881
9
18 43. 4 W
74 45
.1596
19 23 w
74 02
•1634
CS.di
Pt. Pleasant
44 37
63 34
1904
7
21 02 W
73 58
. 1624
21 02 W
73 58
. 1624
co.t
Do.
44 37
63 34
1905
7
20 47. 3 w
73 59.6
. 1619
20 45 W
74 00
. 1619
CI.
Black Point
44 38
64 01
1905
7
21 01. W
73 59-9
. 1617
20 59 W
74 00
.1617
CL
Halifax
44 40
63 35
1881
8
_ _ _ _
74 29
•1595
_ _ __
73 48
.1633
CS.do
Do.
44 40
63 35
1896
5
20 38. 5 W
73 54-
. 1632
21 01 w
73 49
. 1632
Ml.di
Lawrencetown
44 42
63 22
1881
5
21 15 w
21 44W
CO.d
Annapolis
44 44
65 31
1881
9
19 26.8 W
74 53
.1581
20 03 w
74 12
. 1619
CS.di
Waverly
44 47
63 36
1881
8
21 01 W
21 30 W
CO.d
Uniacke
44 52
63 53
1901
5
21 07 w
21 17 W
__. __
co.t
Windsor
45 00
64 08
1881
9
20 42. 3 W
74 49
.1578
21 II W
74 08
.1616
CS.di
Bamhart I.
45 00
74 48
1871
5
10 22 W
12 04 W
__ __
CO.d
Cornwall Canal
45 00
74 55
1869
5
9 30 W
_ _ _--«
II 20 W
-_ __
CO.d
L. Memphremfigog
45 01
72 15
1845
5
_
76 08. 6
' _ _ _ _
74 47
CO. I
Stanstead
45 02
72 10
1842
7
76 19.2
.i486
__ -_
74 57
.1566
JL.83
Do.
45 02
72 10
1845
5
II 33 W
1 15 21 W
CO.d
Cornwall
45 02
74 50
1845
5
76 16.4
.1509
74 56
• 1590
CY.i
Country Harbor
45 08
61 40
1902
5
22 40"" W
22 47 W
co.t
Chamcook
45 08
67 05
1859
8
17 35- 7 W
76 09.4
.1494
19 20 w
74 42
• 1576
CS.di
Black Rock
45 10
64 46
1856
5
1844 w
20 06 W
__ __
CO.d
Kentville
45 12
64 46
1847
5
75 46
74 12
CO. I
Mispeck Pt.
St. John
45 12
66 00
1859
5
is Ve" w
^9 56 W
-_ __
CO.d
45 15
66 07
1905
7
20 43. w
74 23. 7
. 1610
20 41 w
74 23
. 1610
CI.
Prospect Hill
45 15
71 14
1845
5
12 08.5 W
15 50 w
CO.d
Station
45 16
66 38
1892
5
20 00 w
_- _-
__ __
co.t
St. Johns
45 17
73 15
1842
7
_
77 00. I
75 38
JL.83
Highland Boundary
45 18
71 05
1845
5
13 20 w
' i6 53 W
__ -_
CO.d
Arnold River
45 20
70 55
1845
5
13 30 w
_
17 03 w
__ _-
CO.d
Isle d'Urval
45 25
73 44
1843
3
_ _
77 03. I
. 1410
1 __ __
75 41
.1491
ik-^.3
Dead River
45 26
70 48
1845
5
13 10 w
16 34 w
._ __
CO.d
* Local disturbance.
t Compiled by S. M. Dixon in Trans. Nova Scotian Inst, of Science, Volume XI, pt. 2, pp. 245-259
MAGNETIC ELEMENTS IN CONTIGUOUS COUNTRIES. 73
Table I. — Observed magnetic elements and the values reduced to January i, 1905 — Continued.
BRITISH NORTH AMERICA— Continued
Group I. — South of parallel 52^ N. and between meridians 60*^ and 7^ W. — Continued.
station
Isle Madame
Arichat, I. Madame
Montreal
Do.
Do.
Highland Boundary
La Combe Farm
McAdam Junction
Isle Madame
Riviere a la Graisse
Carillon
Hawkesbury
Highland Botmdary
Pte. du Chene
Merigomish Hbr.
Richmond
Pictou Harbor
Highland Boundary
Kingsey
St. Jerome
WaUace Harbor
Louisburg
Pugwash Harbor
Drummondville
Fredericton
Sord
Do.
Sydney
Do.
Do.
Do.
Do.
Woodstock
Cape Tormentine
Georgetown
Charlottetown
Do.
Do.
Do.
Carleton Head
Shediac Island
Labelle
Cape Breton
Do.
Three Rivers
Becancour
Bedeque Harbor
River St. Croix
Cape Turner
Richmond Bay
Cascumpeque
Quebec
Do.
St. Thomas
Station
Miramichi
Edmunston
Edmunston, A & B
Lake Edward
Riviere du Loup, Pt.
Riviere du Loup, en
bas
NE. Boundary
(claimed before
1842)
Lati-
tude
N.
45 28
45 30
45 30
45 30
45 30
45 31
45 33
45 34
45 35
45 36
45 36
45 36
45 37
45 37
45 38
45 41
45 42
45 42
45 46
45 46
45 49
45 53
45 53
45 53
45 55
46 02
46 03
46 08
46 09
46 09
46 09
46 09
46 09
46 10
46 II
46 14
46 14
46 14
46 14
46 15
46 15
46
46
46
Longi-
tude
W.ofGr.
46 21
46 22
46 24
46 25
46 30
46 34
46 48
46 48
46 48
46 59
47 00
47 06
47 15 ,
47 23 I
47 40 I
47 50 I
47 51 I
61 03
61 01
73 35
73 35
73 35
70 43
74 09
67 20
60 56
74 22
74 30
74 37
70 37
74 50
62 27
72 03
62 40
70 28
72 12
73 59
63 26
60 00
63 41
72 34
66 38
73 03
73 00
60 14
60 II
60 12
60 12
60 15
67 35
63 50
62 33
63 08
63 08
63 08
63 08
63 43
64 23
74 33
60 08
60 23
72 33
71 33
63 48
70 03
63 20
63 43
64 03
71 14
71 14
70 33
67 30
65 04
68 20
68 20
72 15
69 33
69 25
48 00 67 47
Date
1862
1881
1896
1905
1906.
1845
1843
1906
1848
1843
1843
1906
1845
1843
1842
1876
1 841
1844
1842
1906,
1840
1862
1840
1842
1847
1842
1842
1905
1905
1896
1896
1905
1847
1840
1843
L898
1900.
1902
1907
1840.
1839
1906
1862
1857
1906
1876
1841
1844
1845
1845
1845
1879
1906
1876
1875
1857
1876
1906
1906
1906
1876
1859- 5
Observed
Reduced to 1905.0
Decl'n
23 25.9 W
14 19.0 W
14 40. I W
13 25
8 26
19 02.
22 30
8 26
8 41
II 51.
13 37
7 28
20 15
16 59. 1
20 19
13 50
W
W
w
w
w
w
w
w
w
w
w
w
w
15 49. 2 W
19 50 w
19 40 w
12 28 W
II 22 W
25 05.0 w
24 48 w
24 53. 6 W
24 55-3 W
25 09. 6 W
20 00
21 58
23 40
24 05
23 42
23 33
20 18
19 59
W
W
W
W
W
W
W
W
15 24. 6 W
24 40
15 26.
15 43-
20 12
15 02
21 41
21 00
21 10
17 13.
17 53-
17 50-
21 00
21 24
W
I W
5W
w
vv
w
w
w
7W
oW
I w
w
w
21 07. 7 W
19 34. 4 W
20 38. 7 W
20 38. 8 W
19 30 W
Incl'n H. Int. Decl'n Ind'n H. Int
incrn
M. int.
/
C.^.J. .
75 31
74 43
•iHa
75 40. 2
• 1507
75 38. 2
75 38. I
.1512
76 50- 6
.1454
75 12. I
• 1532
76 03. I
. 1500
76 55.4
. 1421 ;
75 47-4
.1558
77 40-
76 08.2
• 1348
.1487
76 00
—
76 59
—
77 16.4
• 1397 :
74 25
74 38. 6
. 1560
■ 1547 1
74 37 .
74 23. 7
.^566
77 05
1
'" 1
76 29.8
76 03
• 1432
75 57- I
76 54- 5
. 1482
• 1438
76 45. I
■ 1431
76 01. I
• 1477 ;
77 11.7
.1394
77 18.3
76 18.8
76 54. 2
76 34. I
• 1369
• 1423
.1389
. 1408
77 31.6
.1359
—
23 55 W
14 50 W
14 37 W
16 43 W
13 30 w
18 59 W
24 36 W
13 30 W
13 45 W
11 44 W
16 55 w
12 32 W
22 55 W
18 07 w
23 05 w
17 08 w
15 42 w
22 41 W
22 31 W
17 04 W
15 58 w
25 03 w
24 46 w
24 50 w
24 51 w
25 08 w
22 52 W,
24 32 w'
23 58 w
24 17 w
23 49 W
23 28 W
23 09 w
22 59 W
15 18 W
25 50 W
15 21 W
16 37 w
22 58 W
18 14 w
24 Q4 W
23 23 W
23 33 W
17 55 W
17 50 W
18 38 w
21 50 W
22 42 W
21 04 W
19 30 W
20 35 w
21 28 W
21 OOW
74 08
74 03
75 34
75 39
75 39
75 29
75 14
76 04
75 33
74 57
c, g. s.
. 1622
1517
1512
1535
1532
1500
. 1502
. 1609
76 18 . 1428
76 10 I. i486
74 37
75 31
75 54
74 25
74 35
74 34
74 24
75 37
1477
1560
• 1547
1566
76 31
74 40
75 59
76 03
1431
. 1482
. 1488
75 59 • 1474
76 02 . 1477
76 20 . 1451
76 26
76 21
76 56
76 36
76 41
1421
1423
1389
1409
1417
Source
CO. I
CS.di
CS.di
CI.
CI.
CO.d
JL.83
CI.
CO.d
JL.83
lY'
CO.d
JL.83
CO.d
NA.di
CO.d
CO.d
JL.83
CI.
CO.d
CO. I
CO.d
JL.d
CO. I
JL.83
JL.d
CI.
FN.
Ml.di
Ml.di
CI.
CO. I
CO.d
CO.d
BN.oi
BN.05
BN.05
BN.
CO.d
CO.d
CI.
CO. I
CO.d
CI.
NA.di
CO.d
CO.d
CO.d
CO.d
CO.d
CS.di
CI.
NA.di
co.t
CO.d
NA.i
CI.
CI.
CI.
NA.di
SS.dt
t Compiled hy S. M. Dixon, Trans. Nova Scotian Inst, of Science, vol. XI, pt. 2, pp. 245-259.
X State siu-vey .
74 MAGNETIC TABLES AND CHARTS FOR 1905.
Table I. — Observed magnetic elements and the valines reduced to January i, 1905 — Continued.
BRITISH NORTH AMERICA— Continued
Group I. — South of parallel 52^ N. and between meridians 60^ and 75^ W. — Continued.
Observed
Reduced to 190^.0
Lati-
tude
Longi-
tude
Date
Source
N.
W.ofGr.
Decl'n
Ind'n
H. Int.
c.g.s.
Decl'n
Ind'n
H. Int,
/
/
/
/
f
c. g. s.
Tadousac
48 08
69 43
1887.6
19 27.5 w
_
1959W
_ _ _ _
FN.d
Alphonse
48 21
70 54
1906.7
21^4 W
77 56. I
.1279
77 57
.1279
CI.
Chicoutimi
48 25
71 03
1906.7
20 17. I W
77 36.9
.1334
20 14 W
77 38
. 1335
CI.
Roberval
48 31
72 14
1906.7 1
19 44.5 W
77 33.5
• 1329
19 41 w
77 35
• 1329
CL
Peribonka
4846
72 05
1906.7 j
20 55- 7 W
77 27.4
. 1328
20 52 w
77 29
• 1329
CI
Baie de Gasp6
48 49
64 28
1887.6 '
25 08 W
25 37 W
FN.d
Mistassini
48 54
72 14
1906.7 j
19 20. 5 W
78 19.4
. 1250
1 19 17 w
78 21
. 1250 j
CI.
Anticosti
49 05
61 42
1892.6
28 41.0 w
' 28 34 w
_ _ _ _
BN.oi
Baie des Sept lies
50 13
66 25
1887. 6
20 13 w
1
1
-- --
-.__
FJ^.d
Group II. — South of parallel $2^ N. and between meridians 7f* and 90^ W.
/
/
/
/
c. g. s.
r
f
c. g. s.
Bois Blanc I.
42 05
83 07
1906.0
I
52. 2 W
73 02
.1789
I
50 w
73 02
.1789
LS.
Amherstburg
42 06
83 03
1845. 8
_
73 30.0
. 1802
_
72 57
•1794
JI..83
Rondeau Harbor
42 16
81 52
1896. 8
2
07. I w
2
25 w
CO.d
Chatham
42 24
82 10
1906.8
2
13 8 W
73 33.4
. 1749
2
10 w
73 33
.1752
CI.
Long Point
42 34
80 08
1896. 8
3
55.0 w
4
13 w
CO.d
Turkey Point
42 39
80 20
1896. 4
3
48.0 W
4
08 VV
_ _ _ _
CO.d
Simcoe
42 5»
80 18
1906.8
4 39. 7 W
74 04. 6
. 1701
4
35 W
74 05
• 1704
CI.
Renton
42 52
80 13
1905-8
5
20 W
5
18 W
co.t
Canfield Jc.
42 58
79 44
1905.8
5
37 W
5
35 W
_ _ _ _
CO.
Sarnia
42 58
82 22
1845. 8
_
74 15.7
.1727
.
__
73 35
• 1732
JL.83
Hyde Park Jc.
Welland
42 59
81 19
1906.8
3
26. 8 W
73 56. 6
. 1704
3
22 W
73 57
.1707
CI.
43 00
79 14
1905.8
5
34 W
5
32 w
co.t
Niagara Falls
St. Catherines
43 04
79 09
1845. 8
74 46."8
.1665
__
74 01
.1693
JL.83
43 08
79 16
1905.8
6
35" w
6
33 W
co.t
Stoney Creek
Cape Ipperwash
43 13
79 46
1905.8
5
13 w
_
5
II W
_« - _
co.t
43 13
82 00
1860.4
03. 3 H
74 46
. 1675
3
ooW
74 02
. 1698
LS.di
Kettle Point
43 13
82 01
1905.8
3
43. 6 W
74 03
. 1680
3
41 W
74 03
. 1680
LS.
Niagara Village
43 15
79 08
1843. 2
74 45. 6
.1679
__
73 59
.1707
JL.83
JL.83
Hamilton
43 16
79 50
1843.0
.
74 55.4
.1658
-
__
74 09
.1686
Berlin
43 27
80 31
1906.8
5
27. 9 w
74 23.3
.1666
5
23 w
74 23
. 1668
CI.
Goderich
43 44
81 43
1860.6
I
42. w
75 02
.1648
445W
74 18
. 167 1
LS.di
Do.
43 44
81 44
1905.8
4
20.7 w
74 29
• 1645
4
19 w
74 29
• 1645
LS.
Do.
43 45
81 39
1901.6
4
II. 8 W
._
4
19 w
__ _ _
co.t
Do.
43 45
81 41
1845. 8
75 04. 8
. 1642
__
74 22
.1667
JL.83
Do.
43 46
81 42
1906.7
4
15-5 W
74 26.5
. 1660
4
II w
74 26
. 1660
CI.
Agincourt (Mag.
Obsy.)
Do.
43 47
79 16
1905.0
5
40. 3 w
74 33. 8
.1643
5
40 w
74 34
• 1643
CO.
43 47
79 16
1906.8
5
47.0 W
74 35- 6
.1638
5
42 w
74 36
. 1638
CI.
Coburg
43 56
78 10
1843. 3
75 27. 2
_.
7441
JL.83.
BeUeviile
44 09
77 25
1843. 3
_
77 01.
_
-_
76 15
JL.83
Kincardine
44 "
81 38
1905.8
5
12.4 w
74 36.0
. 1641
5
10 w
74 36
. 1641
LS.
Kingston
44 13
76 29
1842.9
77 15.0
.1531
76 14
.1567
JL.83
Kingston jc.
44 15
76 29
1906.7
13
26.0 w
74 57. 3
. 1621
13
20 w
74 57
. 1620
CL
Peterborough
44 18
78 18
1906.7
8
16. 1 w
74 42. 9
. 1647
8
II w
74 43
.1647
CI.
Barrie
44 21
79 41
1843. I
_
75 49.9
_
75 08
&
Southampton
44 30
81 23
1905.8
6
04. 5 W
75 00
•^584
6
02 w
75 00
.1584
Brockville
44 32
75 41
1845.4
_
76 18.9
.1496
_
__
75 16
.1532
CY.i
Prescot
44 35
75 30
1843.3
_
78 42.5
_
__
77 40
JL.83
Owen Sound
44 35
80 57
1906.7
5
45. 8 W
75 10.7
.1590
5
41 w
75 "
• 1590
CI.
Penetanguishene
44 47
79 55
1906.7
6
58. 9 w
75 27.9
•1556
6
54 W
75 28
• 1556
CI.
Do.
44 47
79 58
1843. I
_
76 14.6
.1544
_
__
75 30
. 1565
JL.83
Kinmount
44 48
78 39
1906. 7
8
22. 7 W
75 18.2
.1558
8
18 w
75 18
.1558
CL
Penetanguishene
44 49
80 01
1844.9
_
76 20. I
.1533
_
_.
75 36
•1554
JL.83
Williamsburg
44 55
75 07
1843. 3
_
76 30. 8
. 1502
_
__
75 20
.1555
JL.83
Stokes Bay
44 59
81 22
1905.8
6
14. 8 W
75 32
•1538
6
13 w
75 32
•1538
LS.
Aylmer
45 15
75 58
1843.3
_
76 41
.1470
_
--
75 40
• 1534
JL.83
Cove Island
45 20
81 43
1860.7
3
58. 6 VV
76 32
. 1506
6
56 w
75 50
. 1530
LS.di
Do.
45 20
81 44
1898.5
6
53. oW
._
7
08 w
co.t
Do.
45 20
81 44
1905.7
7
02. 4 W
75 44
•1553
7
01 w
75 44
• 1553
LS.
t W. B. Anderson; observer, communicated in MS.
t F. Anderson, obser\'^er; communicated in MS.
MAGNETIC ELEMENTS IN CONTIGUOUS COUNTRIES. 75
Table I. — Observed magnetic elements and' the values reduced to January /, ipo3 — Continued.
BRITISH NORTH AMERICA— Continued
Group II. — SotUh of parallel 52® N. and between meridians yf^ and 90^ W. — Continued.
Station
Ottawa
Do.
Do.
Chat Falls
Templcton
Renfrew
Madawaska
Fox's Point
Emsdale
Port du Fort *
Alfred Township
Great Duck I.
Providence Bay
Grande Calumet
Magnetic Shoal *
Cockbum I.*
Mississagi Straits
Fort Coulonge
Pte. au Croix
RicoUet'sFall*
George's Island
Little Current
Chalk River
Frazer Bay
Beverly I.
Bedford I.
Pte. Bapt^me
French River*
Ft. la Cloche
Do.
Aird Island
Grant Island
Snake Island
R. Mississaqui
Lake Nipissing
Algoma
Cranberry Bay
Port des deux Joa-
chims
Aberdeen
Roche Capitaine
Trou Portage
Little River
St. Joseph I., Gravel
Pt.
St. Joseph I., Hilton
Tfssalon Pt.
Mattawa
Trout Lake
P. Grande Vase W.
North Bay
P. Grande Vase
Bear Camp
Campement d'Ours
Forshaw L
Maniwaki
Mission Point
Pointe aux Pins
Soo A
Sudbury
Sugar Island
Sault Ste. Marie
Do.
Pte. aux Pins
Gros Cap
Lati-
tude
N.
Longi- {
tude
W.ofGr..
Observed
Reduced to 1905.0
Date
45 21
45 21
45 24
45 26
45 29
45 29
45 30
45 32
45 32
45 36
45 37
45 38
45 40
45 45
45 50
45 52
45 54
45 55
45 56
45 57
45 57
45 59
46 00
46 00
46 00
46 02
46 05
46 05
46 07
46 07
46 09
46 09
46 10
46 10
46 II
46 II
46 II
46 12
46 14
46 15
46 15
46 15
46 16
46 16
46 17
46 18
46 18
46 18
46 19
46 20
46 20
46 20
46 20
46 23
46 27
46 28
46 29
46 30
46 30
46 30
46 31
46 30
46 32
75 42
75 42
75 43
76 32
75 36
76 40
77 59 ,
75 22 I
79 18 I
7653 !
75 00 I
82 56 :
82 17
76 40 !
83 19
83 21
83 14
76 45
81 02
80 30
81 32
8x 55
77 26
81 40
82 15
82 01
77 26
80 20
82 03
82 03
82 22
83 18
82 40
83 02
79 48
82 50
82 53
77 40
77 50
77 45
78 16
78 44
83 50
83 54
83 33
78 42
79 13
79 22
79 26
79 20
83 50
83 56
84 05
75 59
84 36
84 28
84 21
81 00
84 17
84 20
84 22
84 29
84 43
856.
875
906.
843
843
906
906,
843
906,
843
843
905
905
843
905
905
905
843
843
843
843
900
906
843
886
885
843
843
843
844
887
886
843
843
843
906
843
843
843
843
843
843
889,
889.
843
843
843
843
906,
843
843
845
889
906
855
855
895
906
843
895
844
843
841
Decl'n
Ind'n . H. Int. Decl'n
ID 00. 5 W
12 44. 4 W .
'S 28" W
II 13. 6 W
9 05. 2 W ;
7 52."2 W!
10 II w
6 58 W
2 22. 8 W
4 26. 4 W
5 46" w'
2 II. 3 E
4 06. 4 W
1 26 W
4 23.4 W
10 20. 2 W
5 02.0 w
3 43- oW
5 32" W
2 10 W
3 44" W
2 43 W
2 13 E
4 35'4W
o 25 W
5 33 W
5 09 W
2 36 W
2 38
O II
3 36
4 53
8 44.
3 15
o 02.
03
51-
o
2
12 20.
2 09
I
I
6
21
51-
26.
1 04
2 16.
I 01
W
W
w
w
2W
w
5E
E
oW
oW
E
E
3W
8 W
E
5W
E
76 42
75 39- I
75 07
75 46. 7
75 54.0
76 35-3
75 48. 7
76 24
76 00
76 44-4
77 00
76 40
77 29.7
76 31- 3
76 45. 4
c. g. J.
'"I I
• 1522 I
. 1648 '
• 1513
•1503
.1484
• >520 ;
146 I
I5I3
1464
142 I
142 I
1389
1494
1493
76 23. 5 . 1461
77 05. 6 . 1432
77 19- I • 1394
76 50.2
77 05.5 .1427
77 09. 5 . 1420
76 24. o . 1467
77 03. 8 . 1428
77 24. 4 • 1399
77 28.5 . 1395
76 59-3 I- 1455
77 21.7 .1407
76 37-4 |- 1442
-" :::: j ::"
76 29.5 j. 1441
76 22.0 1. 1477
77 19-5 • 1398
77 13.4 ;i436
77 05.3 1
/
•
II
31
W
12
37
W
Ind'n
H. Int.
13 32 w
11 08 W
9 ooW
747W
15 01 W
12 02 W
2 21 w
424W
544 W
2 09E
4 04W
5 26W
434W
10 14 W
6 04 W
445W
9 37"W
6 04 W
444W
348W
6 05 W
4 3iw
4 17W
949W
9 25 W
3 28W
3 30W
403W
752W
9 09 W
8 39W
7 31 W
3 50W
349W,
343W1
12 13 Wl
28 w I
17 w
19 w
23Wi
50 W
44W
Source
44W
/
75 23
c.g.s.
75 40
74 06
.1521
. 1700
75 48
75 55
75 13
75 49
• 1512
•1503
•1548
•1519
76 24
76 00
75 43
. 1461
.1512
.1513
77 00
76 40
76 28
75 48
76 02
. 1420
. 1420
•1438
.1513
• 1514
76 24
76 26
. 1460
.1451
76 18
.1434
76 12
76 28
.1446
76 27
76 25
•1445
.1466
76 04
.1468
76 28
76 3i
•1439
.1435
76 23
• 1476
76 37
• 1447
7638
• 1442
76 30
.1440
76 23
.1477
76 47
76.41
76 33
.1419
•1457
* Local disturbance.
76 MAGNETIC TABLES AND CHARTS FOR 1905.
Table I. — Observed magnetic elements and the values reduced to January /, 1905 — Continued.
BRITISH NORTH AMERICA— Continued
Group II. — SoiUk of parallel 52° N. and between meridians 75^ and 90° W. — Continued.
Station
Parisian I.
Near Parisian I.
Goulais Point
Temiskaming
Kipewa
South Sandy I.
Baskatong
North Sandy I.
Near North Sandy I.
Temagami Inn
Pte. aux Cr6pe
Mamainse Pt.
Temagami Sta.
Mishomis *
Biscotasing
Montreal I.
Caribou I. No. 2
Caribou I. No. i
Caribou I. No. 3
Sinclair Hbr.
Sinclair I.
New Liskeard
Gargantua I.
Gargantua (i)
Gargantua (2)
Cape Gargantua *
Michipicoten I.
Englehart
Chapleau
Near Dog R.
Foot, Long Portage
Michipicoten
Do.
Le Petit Mort
Chienne R.
Pigeon R.
Victoria I.*
Do.
Otter I.
Do.*
Stiu-geon Bay
Big Stony Portage
Tip Top
Twin Lake
Sandy Beach, Dog L.
Thunder Cape
Thunder Cape
Thunder Harbor
Fairy Point
Missmaibi
Thunder Cape
Porphyry Point
Oiseaux Bay
Big Edward Island
Gravel Island
Ft. William School
Ft. William Mission
Fort William
Portage Ecart^
Portage, de Lisle *
Missinaibi Post
Mauvais Portage
Roche de Bout Ids.
White River
Lati-
tude
N.
46 39
46.40
46 41
46 44
46 47
46 48
46 49
46 50
46 50
46 58
46 58
47 02
47 04
47 13
Longi-
tude
W.ofGr.
18
19
47 20
47 20
47
47
21
22
47 22
47 31
47 34
47 34
47 34
47 37
47 42
47 50
47 50
47 52
47 55 ,
47 56 I
47 56 I
47 56 I
47 58 ,
48 00 I
48 05 I
48 05
48 06 '
48 07
48 II
48
48
48 16
48 18
48 18
48 18
48 19
48 20
48 20
48 20
48 21
48 22
48 22
48 22
48 24
48 24
48 24
48 25
48 26
48 28
48 29
48 31
48 32
84 42
84 43
84 33
79 06
78 59
84 39
75 52
84 40
84 39
80 02
84 44
84 47
79 47
75 38
82 08
84 45
85 48
85 50
85 50
84 42
84 42
79 42
84 58
84 58
84 58
85 05
85 46
79 52
83 27
85 24
84 45
84 50
84 54
85 40
85 16
89 34
89 21
89 22
86 03
86 07
89 18
84 15
86 08
80 17
84 00
88 56
88 56
88 53
83 44
84 07
88 52
88 38
86 10
88 38
88 42
89 14
89 14
89 14
89 44
89 42
83 28
89 44
88 21
86 14
Date
906.6
895.6
867.6
906.8
906.8
867.5
906.8
906. 6
895- 7
906.8
843-4
906. 6
906.8
906.8
906.7
906. 6
906.7
906.7
906.7
906.6
906.6
906.8
906.7
895- 4
895- 4
843- 4
906.7
906.8
906.8
843- 5
880.7
880.6
844. I
843- 4
843- 4
906.8 I
906.8 I
903.0 I
906.7
843- 4 I
906.8 I
880.7 I
871.7 I
906.8
880.6
903.0
906.8 1
906. 8
Jteo. 6 I
906.7
843.4
906.8
906.7
906.8
906.8
902. 8
902. 8
906.7
843- 4
843- 4
880.6
843- 4
906.7
844.8
Observed
Ded'n
2 37. 6 W
2 22.5 W
o 23 E
Ind'n H. Int.
12 16.
2 58.
2 34-
II 26.
" 54-
18 15.
07.
20.
15-
16.
II.
41.
08.
8 50.
2 26.
2 52.
I 33.
38
1 49.
9 05-
4 04.
2 22
3 14-
1 20.
o 20
4 00
2 21
2 44-
o 31.
3 30-
4 07.
9W
E
2 W
6W
4W
8 W
E
7E
4W
3W
2 W
9 W
3W
6W
5W
4W
4W
oW
3W
oW
2 W:
E
2E
8 W
oW
E
oW
'?
E
E
8 E
3E
oE
3W
76 44
76 42. 8
76 41.8
76 38.'5
2 18. I E
4 12. I W
o 03 E
7 47- 5 W
19. 3 W
20.0 E
34. 3 E
14.0 E
22. 2 W
39.1 w
3 16. 2 E
1 41.4 W
3 28. 4 E
2 48. 6 E
3 49. 9 E
3 32. 9 E
3 37-2 E
39 18 E
2 21. 2 W
5 41 E
o 29. 4 W
2 15 E
....
76
47-4
77
"•5
77
18
76
05- 9
77
04.2
77 09- 4
77
02
77
26
77
34-7
77
54
--
c. g. s.
.1478
1430
1430
1417
147 1
1428
1427
1444
1521
1392
1384
•145 1
. 1411
.1348
• 1374
77 56. I |. 1471
77 36 . 1379
77 49-6 |. 1320
77 50- 6 j. 1329
. 1299
,• 1319
78 07.2 . 1330
I ..
78 07
77 51
78 42"
79 43-
77 29
78 56"
77 39.
78 00
77 51.
78 23.
78 06
78 04
78 21
77 54-6
77 54-9
77 48.0
77 13- 5
78 55
78 33. I
Reduced to 1905.0
Dccl'n
1295
1348
1253
. II16
1349
. 1268
1249
1365
1284
1305
1305
1268
1330
1320
1315
I319
1294
1320
1332
1331
1341
1429
1254
I251
1293
2 34 W
2 49W
2 20W
9 40W
2 28 W
12 09 W
2 56W
3 ooW
II 22 W
051 w
38E
II 49 w
18 09 W
3 03 W
3 17 W
1 12 W
I 13 w
1 08 W
2 38W
305W
845W
2 23 w
3 19W
2 00 W
3 22 w
I 53 E
9 00 W
4 00 W
I 32 W
454W
3 01 W
340W
96 E
1 33 W
2 48 E
34E
3 27E
4 04 W
2 21 E
548W
2 18 W
7 42 W
2 55 W
3 17E
2 37 E
2 17 E
5 01 W
5 35 W
3 i9E
1 38 W
3 31E
2 51 E
3 45E
3 28 E-
3 40E
4 06 W
2 II E
o 27 W
2 10 W
Ind'n
76 45
76 43
76 42
76 40 . 1416
1470
H. Int.
c. g. s.
• 1477
• 1430
.1429
I
76 48
76 39
77 19
76 07
77 05
77 10
1427
1448
1443
1520
1391
1384
77 03 '. 1450
77 27 . 1410
77 36 . 1347
77 55 • 1373
77 24
77 37
77 50
77 51
77 34
78 08
77 52
78 43
78 14
77 30
76 27
77 40
78 01 1.
77 52
77 56
78 07
78 05
78 22
77 55
77 55
77 48
76 47
. 1492
•1378
. 1320
.1328
. 1316
.1336
.1351
1294
1347
78 56 ,
78 03 1.
Source
. 1271
1250
1303
* Local disturbance.
t W. J. Stewart, observer; communicated in MS.
MAGNETIC ELEMENTS IN CONTIGUOUS COUNTRIES. 'JJ
Table I. — Observed magnetic elements and the values reduced to January i, 1903 — Continued.
BRITISH NORTH AMERICA— Continued.
Group II. — South of parallel 52° N. and between meridians jf and 90^ W. — Continued.
Observed
Reduced to
1905-0
Lati-
Longi-
Source
Station
. tude
tude
Date
N.
W.ofOr.
Decl'n
Incl'n
H. Int.
c. g. s.
Ded'n
Incl'n
H. Int.
/
/
/
/
/
/
c.g.s.
Roche du Bout ♦
48 34
88 14
1843-4
I 27 E
_ .
2 18E
__
__
JL83
The Pic
48 35
86 15
1844. I
5 33 E
78 36. 6
. 1266 1
I 08E
78
07
• 1275
JL.83
White River
48 36
85 18
1906.7
3 00.6 W
78 15.9
. I29I
2 57 W
78
16
. 1290
CI.
Lamb Island
.48 36
88 08
1906.7
6 12. oE
79 20
. II64
6 15E
79
21
. 1 163
LS.
Sunday Harbor
48 37
8659
1906.7
I 21. oW
78 18
.1298
I 18 W
78
19
.1297
LS.
Fort Pic
48*38
8639
1844.5
5 31 E
I 06E
«_
fe^
Spar Point Island
48 38
88 06
1906.7
2 00. 2 E
78 26
. 102 1
2 03E
78
27
. 1020
Porcupine Island ♦
48 38
88 09
1906.7
21 30.1 W
68 48
.1983
21 27 W
68
49
. 1982
LS.
Dog Portage
Black Rock *
48 39
89 30
1844. I
78 26. 8
.1304
__ __
78
00
. I3IO
fe'^
48 41
86 30
1906.7
19 26.4 W
81 50
. IOI6
19 23 w
81
51
. IOI5
Little Pic Island
48 41
8633
1906.7
6 13. oE
_
• 1359
6 16E
.1358
LS.
Swampy Portage
48 42
83 24
1880.7
12.7 W
_
. 1269
I 58 w
.1286
CS.di
Peninsula Hartor
48 42
86 20
1906.7
' 4 53.7 W
77 47
.1419
450W
77
48
. I4I8
LS.
Pic Island
48 42 1
86 34
1906.7
2 45. 8 E
78 08
. 1320
2 49 E
78
09
.1319
LS.
Dog Lake
48 44
89 40
1843.4
6 51 E
_
- _- _
3 21 E
fe.?
Height of Land
48 45
85 05
1874. 5
I 00 E
_
I 07 W
__
__
Battle Island *
48 45
87 33
1843.4
_
76 24
.1481 ,
_ --
75
57
.1490
JL.83
Battle Island
48 45
87 33
1906.7
I 57.6 w
79 04
.1234
I 54W
79 05
• 1233
LS.
Halting Place
48 45
89 53
1857- 5
8 54 E
5 19E
__
CO.d
Isle St. Ignace
4846
87 48
1906.7
4 58. I E
78 10
. 1298
5 01 E
78
II
.1297
LS.
St. Ignace
48 47
87 49
1869.0
5 08. oE
_
'
2 18E
__
LS.3E
48 47
87 49
1871.0
6 26. oE
_
3 46E
__
LS.3E
Schreiber
48 49
87 18
1906.7
22.4 W
78 24. 8
.1271
19 W
78
25
. 1269
CI.
Simpson's Island
48 49
87 45
1843.4
; 5 45 E
78 53. 6
• 1245
I 50 E
78
27
• 1254
JL.83
St. Pauls Portage
48 50
83 24
1880.7
4 10. 2 W
. I2I9
5 55 W
.1236
CS.di
Halting Place
48 55
89 54
1857.5
9 05 E
_
_ - _ _
5 35E
_ _ _ _
CO.d
Nipigon
49 01
88 16
1906.7
I 17.5E
78 28.6
. 1274
I 20 E
78
29
.1273
CI.
Moose River
49 08
83 22
1880.7
1 4 20. 4 W
_
. 1 194
6 05 W
. I2II
CS.di
Twin Portage
49 12
83 24
1880.6
4 58. I W
. 1216
643W
.1233
CS.di
Albany Rapids
49 22
83 30
1880. 7
4 ii.oVV
._
. 1171
5 56 W
__
..
.1188
CS.di
Kettle Portage
49 47
83 16
1880.6
, 4 15. I W
_
.1141
6 01 W
._
. II58
CS.di
Storehouse Portage
50 04
83 16
1880.7
: 4 54-6 W
"39
6 40 W
__
__
. I160
CS.di
Near Cedar Island
50 21
8.2 42
1880.6
! 5 14-5 W
_
. 1131
7 ooW
__
. II52
CS.di
Falling Brook
Long Gravel Bed
50 36
82 07
1880.6
1 7 56.9 W
._
.1066
9 42 w
__
__
. 1085
CO.di
50 44
81 48
1880.7
8 01.9 W
_
_ -_ _
947W
__
__
CS.d
Gypsum Beds
Ship Sands
50 50
81 15
1880.7
1 9 52.9 W
__
II 38 w
__
_.
CO.
5X 08 ■ 80 44
1846.5
81 02
. lOII
_- -_
._
_.
CO. I
Moose Factory
51 15 ' 80 40
1846.5
81 30
.0962
-- -_
_.
__
CO. I
Do.
51 15 ; 80 40
1880.6
15 27"5 W
_
•0973
__ _-
__
__
CS.di
Do.
51 15
80 56
1890.6
15 14.7 w
80 50.2
_- __
__
^ _
CO.98
Rupert's House
51 30
78 43
1890.7
14 15. 1 w
80 31.5
i "" ~~
--
--
i
CO.98
1
Group III. — South of parallel 52^ N. and between meridians go9 and 10 f* W.
Second Portage
Lake ^ la Crosse
Halting Place
Sturgeon Lake
First Portage
Trembling Portage
Rainy Lake
French Portage
Pickerel Lake
Portage, Two Rivers
Portage des Morts
Fort Frances
Do.
Rainy River ♦
Farrington
Halting Lake
r
/
48 14
92 25
1843- 4
48 24
92 04
1843.4
48 27
92 30
1857.5
48 27
92 38
1843.4
48 28
92 41
1843.4
48 31
90 00
1857.5
48 33
92 50
1843. 5
48 35
91 08
1843.4
48 35
91 12
1857.5
48 35
91 23
1843.4
48 36
91 25
1843. 4
48 37
93 27
1844. I
48 37
93 29
1857.5
48 41
94 31
1843.5
48 43
94 31
1906.8
48 46
92 48
1906.8
48 50
93 58
1857.5
10 21.6 E
7 52 E
9 53 E
10 25
6 21
E
E
10 54 E
8 14 E
: 10 58 E
10 39 E
' 9 35 E
I 9 31 E
I 13 04 E
9 33. 8 E
7 39. 2 E
, II 20 E
* Local disturbance.
77 40. I
77 51.0
77 44.8
77 47.9
78 20. 4
77 49.4
77 30
77 57.4
77 27.2
77 42.4
c. g. s.
.1381
1365
1377
1374
13"
1365
1400
1376
1376
1349
7 26E
4 58E
6 43E
7 25E
3 01 E
7 54E
4 59 E
7 33E
7 14E
6 29E
6 25E
9 45E
9 32E
7 39E
8 40E
77 18
77 28
77 22
77 25
77 58
77 26
77 07
77 34
77 27
77 42
c. g. s.
.1378
. 1362
1374
1371
1308
• 1362
•1397
.1373
1376
1347
JL.83
JL.83
CO.d
JL.83
JL.83
CO.d
JL.83
JL.83
CO.d
JL.83
JL.83
JL.83
CO.d
JL.83
CI.
CI.
CO.d
78 MAGNETIC TABLES AND CHARTS FOR 1905.
Table I. — Observed magnetic elements and the values reduced to January i, 1905 — Continued.
BRITISH NORTH AMERICA— Continued
Group III. — South of parallel 52° N. and between meridians go^ and 10 f* W. — Continued.
Obaervcd
Reduced to 1905.0
> station
Lati-
tude
N.
Longi-
tude
W.ofGr.
Date 1
Source
Dcd'n
Incl'n
H. Int.
Dcd'n
Incl'n
H. Int.
/
/
'1
/
/
c.g.s. 1
/
/
c. g. J.
Prairie Portage
48 57
90 01
1844.6
_- __ - _
1
78 26. I
• 1302 1
-- __
78 03
.1299
JL.83
Savanne
48 58
90 14
1906.7
4 33- 8 E
78 09.9
- 1304
436E
78 10
. 1302
CI.
Estevan
49 09 102 58
1906.7
17 29.4
E
76 18.3
.1490 1
17 24 E
76 18
.1490
CI.
Badgar
49 12 95 56
1906.8
II 05.0
^ 1
77 36.4
1369
II 01 E
77 36 .1369
CI.
Falcon Island
49 19 94 40
1843-5
13 43
E
78 03. 7
- 1346
10 24 E
77 41 . 1343
ft"
Lauder
49 24 100 43
1906.7
16 09.5
E
76 53- 7
. 1433
16 04E
76 53 • 1433
Ignace
49 25 1 91 40
1906 7
6 14. 6 E
78 27.4
.1279 1
6 15E
78 27 1. 1278
CI.
Lake of the Woods
49 25 94 37
1843- 5
12 26
E
78 16.7
• 1315 ,
9 07E
77 54
. 1312
JL.83
Halting Place
49 26 ' 94 48
1857-5
10 17
E
7 34E
CO.d
Intersec. 3d base
49 42 |I02 CO
i88i 1
18 00
E
17 54 E
.- --
IIII
CO.98
and 2d initial mer.
1
On 3d base, west
49 42 I102 32
1881
19 30
E
19 25 E
__
CO.98
bndry. Range IV
i
On 3d base, west
49 42 102 49
1881
18 45
E
18 43 E
__ __
-___
CO.98
bndry. Range VI
On 3d base, west
49 42
103 05
1881
18 50
E
_
,
18 50 E
__ -_
CO.98
bndry. Range VIII
On 3d base, west
49 42
103 05
1881
18 50
E
18 50 E
-_ __
CO.98
bndy. Range X
1
On 3d base, west
49 42
103 21
1881
18 30
E
,
18 30 E
__ _-
CO.98
bndry. Range XII
On 3d base, west
49 42
103 54
1881 1
19 10
E
_ _ __--
19 II E
__ __
CO.98
bndry.RangeXIV
1
On 3d base, west
49 42
104 10
1881
19 40
E
19 42 E
_- __
CO.98
bndry.RangeXVI
On 3d base, west
49 42
104 26
1881
19 45
E
__ __-_
19 48 E
-_ __
CO.98
boundary. .Range
XVIII
On 3d base, west
49 42
104 42
1881
19 30
E
19 35 E
-_ --
CO.98
bndry. Range XX
On 3d base, west
49 42
104 59
1881
19 25
E
19 33 E
_- __
CO.98
boundary. Range
XXII
Upper Fort Gray
49 43
97 02
1843. 5
16 00
E
_.
13 23 E
__ __
iV^
Kenora
49 46
94 26
1906.7
9 54-1
E
77 58.9
.1318
9 52E
77 59
. 1316
CI.
Near Rat Portage
49 46
94 29
1885.7
II 58
E
78 35- 3
. 1272
II 18 E
78 26
. 1282
CO.98
Rat Portage
49 46
94 33
1844. I
9 38
E
78 07. 5
-1331
6 19E
77 44
. 1328
&•«'
Eagle River
49 48
93 "
1906.7
6 39- i
rE
78 07.8
-1313
6 39E
78 08
.1312
Brandon
49 50
99 57
1884. 6
14 59
E
77 36.0
.1386
14 47 E
77 28
.1389
CO.98
Do.
49 52
99 58
1906. 7
1 15 00. :
lU
77 28. 7
. 1381
14 55 E
77 29
. 1381
CI.
Winnipeg
49 52
97 09
1906.7
13 56. ]
E
78 10.3
•1304
13 52 E
78 10
-1304
CI.
Winnipeg, C. P. R.
Sand L., Winnipeg R.
49 53
97 16
1882.4
79 50. 2
_- __
79 46
CO. I
50 02
94 42
1885.5
10 55
E
78 31.4
. 1301
10 15 E
78 22
-1309
CO.98
Kirkella
50 02
loi 22
1906.7
16 02.4 E
77 17.0
. 1400
15 57 E
77 17
. 1400
CI.
Mouth, White Dog R.
50 08
94 54
1885.5
9 50
E
78 28.2
.1304
9 05E
78 19
.1312
CO.98
Selkirk
50 09
96 52
1886. 4
78 21.7
. 1214
_ _ _
78 14
. 1220
CO.98
Winnipeg R.
Do.*
50 10
50 10
95 09
95 12
1844.0
1843.5
11 55
12 29
E
E
79 10. 6
. 1230
9 07E
9 41E
78 53
. 1227
JL.d
JL.83
West Selkirk
50 10
96 52
1907. 8
13 16. 8 E
78 45-6
. 1256
13 II E
78 46
•1254
CI.
Grassy Narrows,
English R.
50 II
94 02
1885.5
9 38
E
79 05- 9
. 1220
9 05 E
78 58
. 1226
CO.98
English River
50 14
94 59
1885.5
9 04
E
79 07.9
. 1219
8 31E
79 00
.1225
CO.98
Slave Falls
50 15
95 40
1843-5
_
78 57. I
.1245
__ __
78 39
.1242
JL.83
English River
50 16
94 31
1885.5
9 31
E
79 16.3
.1193
9 01 E
79 08
.1199
CO.98
Pinawa Portage*
50 16
96 03
1843- 5
12 49
E
10 35 E
__ -_
JL.83
JL.83
Red River
50 18
96 52
1843.5
_
78 34
.1288
_ __
78 19
.^285
LacSeul,H.B.Co.'s
Post
Tide L., English R.
50 20
92 14
1885.6
7 14
E
79 34. 8
. 1 182
6 30E
79 27
. 1 192
CO.98
50 21
93 57
1885.6
9 32
E
79 21.4
. 1 196
8 52 E
79 13
. 1204
CO.98
English River
50 22
94 39
1885.5
10 32
E
79 22.3
. 1 189
1 9 59E
79 14
. 1 196
CO.98
Lac Seul
50 24
92 05
1885.6
8 23
E
79 04. 4
. 1241
1 7 39E
78 56
. 1250
CO.98
Broadview
50 24
102 35
1906. 7
17 05.
7E
77 37-5
-1359
1 17 00 E
77 37
-1359
CI.
Regina
50 26
104 36
1906. 7
19 12.
oE
76 57. 2
.1427
19 07 E
76 57
- 1427
CI.
Do.
50 27
104 36
1884.6
18 48
E
77 05.0
- 1431
I 18 56 E
76 57
.1432
CO.98
♦ Local disturbance.
MAGNETIC ELEMENTS IN CONTIGUOUS COUNTRIES.
79
Table I. — Observed magnetic elements and the values reduced to January i, 1903 — Continued.
BRITISH NORTH AMERICA— Continued
Group III. — South of parallel 52° N and between meridians po° and 10^ W. — Continued.
Observed
Reduced to 1005
;.o
.
Lati-
^."S"
Source
Station
tude
tudc
Date
N.
W.ofGr.
:
Decl'n
Incl'n
H. Int.
Decl'n
Incl'n
H. Int.
/
/
/
/
c.g.s.
/
/
c.g.s.\
T,ake Winnipeg
50 28
96 35
1857.5
14 25 E
.... 1
II 48 E
_ . __
CO.d
Shanty Narrows,
50 29
92 52
1885. 6 ;
7 II E
79 15.6
. I2I8
6 27E
79 08
. 1228
CO 98
LacSeul
T^ke Winnipeg
50 33
9636
1843- 5 '
_- __« _
79 05. I
_ _ _
78 51
JL.83
Do.
50 35
9636
1843. 5
13 41 E
78 34.4
. 1290
II 27 E
78 20
. 1284
JL83
Fort Alexander
50 37
96 22
1844. I
14 00. 5 E
78 58.4
.1243
20 50 E
78 44
•1237
ik-^3
Camping Lake, En-
glish R.
English River
50 38
93 24
1885.6
8 12 E
79 17.2
. 1203
7 32 E
79 09
.1213
CO.98
50 39
93 10
1885.6
9 31 E
79 11.9
1
. I2I4 1
8 51 E
79 04
. 1224
CO.98
B. of Winnipeg R.
50 42
96 31
1886.5
12 34 H
78 58.8
. "43 1
12 07 E
78 52
.1149
CO.98
Station A
50 42
102 00
1880.4
18 50. 7 E
77 51.5
1
18 12 E
77 46
CO.d I
Station B
50 45
loi 31
1880.4
17 10.8 E
16 37 E
CO.d
Station K
50 46
103 48
1880.5
19 35. I E
77 23.2
19 11 E
77 is
CO.di
Station L
50 49
104 16
1880.5
19 10. 7 E
18 46 E
CO.d
Lake Winnipeg*
51 04
96 26
1844. I
79 31.5
. 1217
. . _ .
79 15
. I2II
JL.83
Do.
51 04
96 56
1843.5
13 45-5 E
79 1 1- 8
.1218
II 32 E
78 56
. I2I2
JL.83
Cat River
51 06
91 24
1885.7
5 40 E
80 05. I
. 1118
5 07E
79 56
. 1 130
CO.98
Lake St. Joseph
51 "
90 37
1885. 7
5 26 E
80 22.2
. 1080
4 31 E
80 12
. 109 1
CO.98
Station J
51 12
103 54
1880.5
19 50. E
77 51.6
20 05 E
77 44
....
CO.d I
Mouth Albany R.,
51 13
90 10
1885. 7
5 56 E
80 19.8
. 1089
5 01 E
80 10
. 1 100
CO.98
Lake St. Joseph
Station I
51 22
104 00
1880.5
18 33- 6 E
77 53. 2
18 49 E
77 45
CO.di
Cat River
51 30
91 50
1885. 7
5 02 E
80 09.3
. 1118
4 12 E
80 00
. 1 129
CO.98
Station H
51 32
103 43
1880.5 ,
19 52.0 E
78 12.0
20 07 E
78 04
CO.di
Lake Winnipeg*
51 34
96 43
1844. I
15 07 E
79 06. I
.1255
13 27 E
78 50
.1249
JL.83
Do.
51 36
96 42
1844.0
15 42 E
14 02 E
JL.d
About 6 miles N. of
51 37
96 37
1886.5
14 36 E
78 49- 2
. 1162
14 16 E
78 41
. 1 167
CO.98
Loon Lake
Lake Winnipeg*
51 37
96 53
1843.5
16 25 E
79 38.0
. 1200
14 45 E
79 22
.1194
JL.83
Station G
51 39
103 08
1880.5
19 33- 3 E
78 21.2
19 48 E
78 13
CO.di
Lake Winnipeg*
51 40
9656
1843.5
21 38 E
_
19 58 E
JL.83
Station F
51 42
103 04
1880.5 i
19 38. 2 E
_
' 19 48 E
_ _ __
CO.d
H.B.Co.'spost,CatR.
51 44
91 46
1885.8 ;
4 38 E
80 29.
. 1072
348E
80 20
. 1083
CO.98
Lake Winnipeg*
51 44
97 02
1844- I 1
15 24 E
79 39
.1274
13 44E
79 23
.1268
JL.83
CO.d
Station E
5« 44
102 29
1880.5 ,
18 56.0 E
19 II E
Lake Winnipeg
51 45
96 53
1843.5 '
15 57 E
4 17E
. _ _ _
JL.d
Station D
5» 45
102 01
1880.5
20 12.6 E
78 34- 7
20 26 E
78 27
CO.di
Cat Lake
51 46
91 51
1885.8
_
80 23. 2
. 1091
_ . _ _
80 14
. II02
CO.98
Lake Winnipeg I.
51 46
97 00
1843.5
79 28.3
_ _ _ _
79 12
JL.83
Station C
51 54
loi 57
1880.4
19 37.3 E
78 34. 5
19 50 E
78 26
: CO.d I
1
Group IV. — South of parallel 5^® N and between meridians 10^ and J2cP W .
/
/
/
'
/
1
c.g.s.
/
/
c. g. s.
Witwam R. Sta.*
Inshwointum Sta.
49 00
114 45
1861.6
_.
73
30.8
• 1764
..
73 39
■ 1751
! co.i
49 00
118 28
1860.9
_
72
48.8
. 1808
-. ._
72 46
.1785
j CO.I ■
Osoyoos Sta.
49 00
119 24
1860.5
22 14 E
24 00 E
CO.d
Akamina Sta.
49 01
114 04
1861.5
23 12 E
73
42-7
•• 1757
23 12 E
73 51
.1744
CO.d it
N. W. Terr. Sta.
49 06
"3 50
1879.2
23 22 E
23 37 E
CO.d
Camp No. 1 1
49 07
115 16
1860.0
_
73
37-6
73 49
CS.it
N. W Terr Sta.
49 22
113 40
1879. 2
22 58 E
23 18 E
I CO.d
Do.
49 25
113 40
1879.2
22 58 E
23 17 E
.. ._
CO.d
Do.
49 30
113 22
1879.2
22 36 E
__
22 55 E
_ _ _ _
CO.d
Camp No. 14
49 31
"5 35
1860.0
1 23 34 E
73
49.2
■ 1732 1
23 44E
74 00
•1717
CS.dt
Sta. S, the Gap
49 38
109 51
1880.6
21 43.7 E
75
20.4
21 47 E
75 12
CO.di
Station U
49 39
112 18
1880.6
22 22. 7 E
22 37 E
CO.d
Station T
49 40
III 38
1880. 6
21 51.8 E
22 02 E
, CO.d
On 3d base, west
49 42
105 15
1881
19 20 E
._
19 27 E
..
CO.98
bndry., R. XXIV
N. W. Terr. Sta.
49 43
112 50
1879. I
22 28 E
22 45 E
CO.d
Willow Creek
49 45
113 24
1880.6
1 22 38. I E
74
46.3
22 54 E
74 43
. CO.di
* Local disturbance.
t Boundary survey, R. W. Haig, observer; Phil. Trans. R. S., 1864; revised results, 1900.
t U. S. Northwest Boundary Commission, J. S. Harris, observer; revised results, 1900.
8o MAGNETIC TABLES AND CHARTS FOR 1905.
Table I. — Observed magnetic elements and the values reduced to January i, igo^ — Continued.
BRITISH NORTH AMERICA— Continued
Group IV.— SoWA of parallel 52® N, and between meridians 10 f* and 120° W. — Continued.
Station
N. W. Terr. Sta.
Do.
Station R
Fourth base on 5th
Mer.
N. W. Terr. Sta.
Station W
Station Q, Reed L.
Station P
N. W. Terr. Sta.
Station M
SE. cor. T. 21, R. 25
W. of 2d I. M.
SE. corT. 21, R. 29
W. of 2d I. M.
About 1 20 yd. W. of
Sta. 1569 of Tra-
verse
Station N
N. W. Terr. Sta.
Little Shuswap L.
Sicamous Narrows
On Little Shuswap
L. Shuswap, Blind B.
N. W. Terr. Sta.
Magnetic Station
N. W. Terr. Sta.
Do.
Land Survey Sta.
Near Revelstoke
Land Survey Sta.
Station X
Land Survey Sta.
Calgary
Station O
Land Survey Sta.
N. W. Terr. Sta.
Sulphur Mtn.
Banff
Station Y
Tunnel Mtn.
Near Leancloil
Glacier
Between Palliser and
Golden, C. P. R.
Near Rogers Pass
along C. P. R.
I mile N. of Golden
Stephen, RockyMtns.
Near Beaver, Keafe
& Clarke's siding
SE. cor. T. 29, R. 25
W. of 2d I. M.
Intersection 8th base
with 3d I. M.
Station Z
Lati-
tude
N. •
Longi-
tude
W.ofGr.
49 53
49 55
50 03
50 03
50 12
50 22
50 27
50 29
50 30
112 30
III 40
108 51
114 00
no 30
"3 49
107 22
106 47
liio 20
50 44 105 14
50 45 105 20
50 45
50 45
50 47
50 48
50 49
50 50
50 50
50 51
50 52
50 55
50 55
50 56
50 58
51 00
51 01
51 02
51 03
51 03
51 05
51 05
51 05
51 09
51 09
51 10
105 53
119 14
51
51
51
51
51 18
51 19
51 27
51 31
105 51
113 18
119 41
|ii9 00
119 46
119 20
114 00
107 29
no 00
114 10
no 40
118 12
1x1 40
114 00
112 14
114 05
106 37
no 15
115 00
"5 34
115 34
114 48
"5 34
116 38
n7 28
116 52
"7 31
n6 59
n6 18
117 20
51 27
105 23
51 27
106 00
51 52
114 00
Date
879.1
879.1
880.6
887.6
878.7
880.6
880.6
880.6
878.7
880.5
881.6
881.7
885.8
880.5
879.9
885.7
885.8
871.5
885.7
879-8
860.0
878.7
879.9
882.6
886.6
882.6
880.7
882.6
887.5
880.5
882.5
879.6
907.5
907.5
880.7
907.5
886.4
907. 8
886.4
886.5
886.4
886.4
886.5
881.7
881.8
880.7
Observed
Decl'n
22 46 E
22 24 E
22 00. O E
24 01 E
21 55 E
22 03. O E
21 35.0 E
21 18.7 E
23 14 E
20 2 1 . 3 E
20 20 E
20 41 E
24 41 E
20 36. 3 E
23 00 E
27 II E
24 49 E
24 30 E
24 19 E
24 31.0 E
23 50 (?)E
24 30 E
22 37. 1 E
25 22 E
24 13. 4 E
23 19. I E
24 55 E
21 18.6 E
23 58" E
25 53.5 E
25 59. 3 E
25 57-4 E
23 36 E
25 57. 1 E
25 42 E
25 34
25 39
24 00
26 31
20 24
21 04
24 15.8 E
Ind'n H. Int
75 50. I
74 37.5
74 44.1
76 51.2
73 58. 6
73 51.6
74 07. o
73 58. 5
74 26. 2
76 13.2
75 23.4
77 03.9
76 14. 1
74 54
74 56.
75 17.
74 57-
74 49.
74 29.
74 54.
74 41.4
74 50. 2
75 04.3
74 52.3
c,g,s
Reduced to 1905 o
i Ded'n Ind'ni H. Int.
23 00 E
22 36 E
22 10 E
24 »5 E
21 53 E
I 22 33 E
21 40 E
21 34E
I 20 44 E
Ii 20 42 E
I|-2i 04 E
1696 I 25 27 E
20 59 E
23 35 E
27 57 E
I 25 36 E
.1711
.1678
. 1702
1649
1590
1593
1593
1616
1625
1607
1628
1614
1591
1609
24 54 E
25 05 E
23 02 E
26 07 E
24 48 E
23 54 E
25 25 E
21 24 E
24 33 E
25 45 E
25 51 E
25 49 E
24 16 E
25 48 E
26 22 E
26 14 E
26 19 E
24 40 E
27 II E
20 55 E
21 35 E
25 1 1 E
75 42
74 30
74 41
76 44
73 51
73 44
73 59
73 51
74 18
76 06
75 17
7656
76 07
74 55
74 57
75 10
74 58
74 41
74 30
74 46
74 33
74 42
74 56
74 44
c. g. s.
1698
1713
1680
1704
1590
1593
1 593
1618
1624
1609
1630
1615
1592
1610
Source
CO.d
CO.d
CO.d I
CO.98
CO.d
CO.d I
CO.d
CO.d I
CO.d
CO.d
CO.98
I CO.98
CO.98
! CO.d
CO.d
CO.98
CO.98
CO.d
CO.98
CO.d
CO.d
CO.d
CO.d
CO.d
CO.98
CO. I
CO.di
CO.d
CO.98
CO.d I
CO. I
CO.d
CI.
CI.
CO. I
CI.
CO.98
CI.
CO.98
CO.98
CO.98
CO.98
CO.98
CO.d
MAGNETIC ELEMENTS IN CONTIGUOUS COUNTRIES. 8i
Table I. — Observed magnetic elements and the values reduced to January j, igo^ — Continued.
BRITISH NORTH AMERICA— Continued
Group V. — South of parallel 52^ N. and west of meridian 120^ W.
station
Beecfay Head
Whiffen Spit
Sheringham *
Victoria
Do.
Esquimalt
Discovery ♦
Esquimalt
Do.
Arch Rock «
Gordon Head *
Darcy Island **
Vancouver **
Hallibut **
Tom**
Fairfax **
Douglas ♦*
Ashtnolou Sta.
Oyster Harbor
Onchucklin Harbor
Camp Chilukweyuck
Magnetic Sta.
Sumass Prairie
Semiahmoo
Chilukweyuck Lake
Schweitzer Lake
Magnetic Station
Do.
Garry Pt.,FraserR.
On Ashtnolou R.
Do.
Jacko Point
Nanaimo
Port Hammond
Harrison River
New Westminster
Departure Bay
Do.
Barclay Sound
Manoose Harbor
Hecate Bay
Burrard Inlet
Jericho
Port Moody
Do.
Seymour Creek
Vancouver
Do.
Baynes Sd. (Maple
Spit)
Town of Yale
Baynes Sd. (Beak
Henry Bay
Union
Do.
Do.
Union (i^
Union (2'
Lati-
tude
N.
48 20
48 22
48 23
48 25
48 25
48 25
48 26
48 26
48 26
48 28
48 30
48 34
48 34
48 37
48 40
48 42
48 44
49 00
49 00
49 00
49 01
49 01
49 01
49 01
49 02
49 02
49 03
49 05
49 07
49 08
49 10
49 10
49 10
49 12
49 13
49 13
49 13
49 13
49 14
49 15
49 X5
49 16
49 16
49 17
49 17
49 18
49 18
49 18
49 28
49 34
49 36
49 36
49 36
49 36
49 36
49 36
49 36
Longi-
tude
W.ofGr.
23 39
23 44
23 55
23 24
23 24
23 26
23 14
23 27
23 28
24 12
23 x8
23 16
24 38
23 16
23 16
23 18
23 II
20 00
23 48
25 00
21 23
21 45
22 12
22 46
21 23
22 00
20 55
21 07
23 II
20 00
20 00
23 54
24 00
22 39
21 56
22 53
23 58
23 57
24 50
24 08
25 56
23 10
23 12
22 51
22 52
23 01
23 07
23 07
24 45
21 25
24 51
24 51
24 54
24 54
24 54
24 54
24 54
Date
892.8
864.5
893.5
903.5
907.7
881.8
892,7
892.7
898.3
893.6
894.4
894.4
893.6
894.4
894.4
894.4
894- 5 i
860.6
904.9
861.5
860.0
[860.0
858.5
860.0
^859. 7
859. 5
860.0
[860.0
864. 5
860.5
[860.6
904.4
862.5
885.4
885.4
862.5
880.3
881.8
861.5
904- 5
861.5
859.5
891.6
891.5
885.4
891.6
898.4
904.5
898.4
871.5
898.6
860.5
900.8
903.5
904.3
906.5
906.5
Observed
Ded'n
24 37- oE
20 20 E
22 43. o E
24 04. 6 E
24 15. 2 E
22 55- 6 E
23 II. o E
23 42. 9 E
25 37. 8 E
23 36 E
22 57
23 51
22 40
23 35
23 13
23 50
22 44
24 34. o E
24 13 E
22 09
22 55
21 30
22 55
21 37
24 19
22 23
22 58
22 00
24 59. 5 E
22 57 E
22 48 E
22 25 E
22 40 E
23 55. 6 E
24 37 E
24 48- 5 E
22 39 E
23 42 E
23 00 E
22 50 E
24 04 E
24 30. o E
25 11.5 E
24 25. 7 E
24 00 E
24 14. 1 E
25 55. 6 E
26 00. o E
26 05. 6 E
26 00. 9 E
26 17.4 E
Ind'n
71 18. I
71 30.3
71 27.4
71 32.4
72 27.0
72 24.6
72 22.0
72 01. 2
72 310
72 03.9
72 36.9
71 54
71 58.8
72 28. 2
72 15
71 29.2
71 42.2
72 37
72 14
72 II. 8
71 51.5
71 53-6
71 56.5
72 25
71 30 2
71 26.4
71 24.2
71 25.3
H. Int.
c. g. s.
1880
1881
1881
1905
1868
1850
1856
1868
1888
1826
1886
1822
1871
1808
1875
1868
1870
1844
1854
1902
1898
1901
1910
Reduced to 1905.0
Decl'n
25 07 E
21 45 E
23 II E
24 10 E
24 06E
23 48 E
23 41 E
24 03 E
26 06E
24 03 E
23 24 E
24 19 E
23 07 E
24 02 E
23 40 E
24 17 E
24 18 E
24 34 E
25 45 E
23 45 E
24 31 E
23'ioE
24 3« E
23 14 E
25 55 E
23 59 E
24 23 E
.23 34 E
25 02 E
24 26 E
23 35 E
23 12 E
24 08E
24 48E
26 09 E
24 50 E
24 II E
24 15 E
23 34 E
23 37 E
24 37 E
24 50 E
25 13 E
24 44E
25 08 E
24 32 E
26 09E
26 05 E
26 08 E
25 56 E
26 13 E
Ind'n
71 21
71 25
71 21
71 25-
72 19
72 05
72 02
71 41
72 II
71 44
72 26
71 36
71 51
72 20
71 57
71 24
71 36
72 18
71 54
72 04
71 46
71 49
71 52
72 05
71 26
71 26
71 25
71 26
H.InL
eg s.
.1882
.1877
.1876
. I9I4
.1876
I8I8
1836
1848
1868
1806
1866
1790
. 1872
. 1809
. 1870
. 1869
.1879
.1853
.^863
1904
1898
1900
. 1908
Source
CS.d
CO.d
CS.d
CS.3
CI.
CS.di
CS.d
FN.I
BN.oi
CS.d
CS.d
CS.d
CS.d
CS.
CS.
CS.
CS.
CO.di
BN.05
CO.dt
CS.dit
CS.dJ
CO.ditt
CS.dit
CO.itt
CO.diJt
CS.dJ
CS.dt
CD.d
CO.dJt
CO.itt
BN.05
CO.dit
CO.98
CO.98
CO.dit
CS.O
CS.d I
CO.dt
BN.05
CO.dt
CO. It
CO.d
CO.d
CO.98
CO.d
BN.OI
BN.05
BN.OI
CO.d
BN.OI
CO. It
CS.d2
CS.3
CS.4
CS.6
CS.6
* Local disturbance.
** At these stations D was observed with a compass declinometer, which was later stolen before index correction
could be determined.
t G. H. Richards, observer, Phil. Trans. R. S. 1872; Sabine Contr. XIII.
t U. S. Northwest Boundary Commission, J. S. Harris, observer; revised results, 1900.
tt Boundary Survey, R. W. Haig, observer; Phil. Trans. R. S. 1864, revised results 1900.
53819—08 6
82 MAGNETIC TABLES AND CHARTS FOR 1905.
Table l.-^^bservea maqnetic elements and the values reduced to January j, igo^ — Continued.
BRITISH NORTH AMERICA— Continued
Group V. — South of parallel 5^** N, and west of meridian 120** W. — Continued.
Station
Friendly Cove
Comox *
Comox (Goose Spit)
Do.
Head of Howe Sd.
Active Pass
Salmon River
Cisco Station
Squirrel Cove
Mouth Thompson R.
Spences Bridge
Thompson R.
North Harbor
Porte Neville
About 350 yds. S. of
Sta. 1289 of Trav-
erse
Kamloops
Near Black Canyon
Thompson R.
Near Kamloops
Beaver Harbor
Do.
Van Horn
Ashcroft
Thompson R.
St. Cloud
Mouth Hat Creek
Tracey Harbor
Anchorage Cove
Waddington Hbr.
Blunder Hbr.
North Thompson R.
Queen Charlotte Sd.
Treadmill Hbr.
North Thompson R.
Do.
Safety Cove
North Thompson R.
Lati-
tude
N.
49 36
49 40
49 40
49 40
49 42
49 52
49 58
50 07
50 08
50 13
50 24
50 27
50 29
50 31
50 39
50 39
50 40
50 41
50 42
50 43
50 43
50 44
50 44
50 46
50 46
50 47
50 51
50 53
50 54
50 54
50 57
50 59
51 06
51 12
51 28
51 32
51 33
Longi-
tude
W.ofGr.
26 38
24 55
24 56
24 56
23 09
23 19
21 31
21 34
24 57
21 36
21 21
21 22
28 04
26 04
20 07
20 20
21 18
20 12
20 30
27 25
27 25
20 50
21 17
21 05
21 08
21 33
26 53
26 12
24 50
27 19
20 28
27 31
27 34
20 22
20 25
27 57
20 17
Date
881.7
904- 5
898.3
906. 6
873.5
904.7
885.5
885.6
864.5
871.5
885.6
871.5
881.7
860.5
885.7
885. 7
885.6
871.5
877.5
[860.5
[866.5
885.6
907.7
'871. 5
885.6
873.5
863.5
881.6
:88i.6
[903.8
871.5
[903.8
1864.5
1*71.5
[873.5
[864.5
[871.5
Observed
Decl'n
23 36. 2 E
26 40. 5 E
26 14. 7 E
23 54 E
24 03. 5 E
25 02 E
Ind'n H. Int.
71 33.0
c. g. s.
.1883
71 37.4 . 1882
71 29. 6 I
23 56
25 00
23 48
25 30
24 53.
25 05
24 03
27
28
24
00
24
15
24
30
27
36.
I
23
30
23
56
27
00
26
40
25
42.
7
25
22.
26
32.
8
23
52.
5
26
14.4
24
08
24 07.
5
25
20
23
38
25
30
72 40.0
72 42.9
73 27.0
.1805
. 1802
Reduced to 1905.0
Decl'n
24 33 E
26 42 E
26 32 E
24 59 E
24 05 E
25 52 E
25 24 E
26 15 E
24 38 E
26 45 E
25 46 E
Incl'n H. Int
71 27
71 32
71 31
72 32
72 35
73 19
c.g.s.
1879
1890
1806
1803
1727
1862
1714
Source
CS.di
BN.05
BN.oi
BN.07
CO.d
BN.05
CO.98
CO,98
CO.d
CO.d
CO.98
CO.d
CS.di
CO. it
CO.98
MEXICO
/
/
! f
/
c. g. s.
/
/
c. g. s.
Port Escondido
16 04
96 57
1880.9
I 741.7E
39 13.2
.3460
7 30E
40 14
.3343
CS.di
Tonala
16 09
94 03
1907.7
7 18.5 E
41 08.6
.3309
7 19 E
40 59
.3324
MO.
Tehuantepec
16 10
95 27
1880.9
7 17.2 E
40 08. 5
. 3449 1
7 05 E
41 10
•3332
CS.do
Salina Cruz
16 10
95 12
1889. 2
6 59 E
40 02
. 3426 ,
7 07 E
40 50
.3336
UN.di
Do.
16 10
95 10
1907.5
7 10. 8 E
41 27.4
.3306 !
7 09E
41 17
■3320
MO.
Acapulco
16 49
99 56
1880.9
7 56. 6 E
40 08. 5
.3466
7 50E
41 10
.3351
CS.do
Do.
16 51
99 56
1898.0
! 7 32.9 E
40 49. 6
.3379
7 45 E
41 15
.3343
BN.OI
Do.
16 51
99 55
1907.5
8 08. 8 E
41 24.7
■3351 ,
8 04E
41 17
.3363
CS.8
Do.
16 51
99 56
1906.4
8 28 E
41 09.0
.3341 1
8 26E
41 05
.3349
BN.07
Rincon Antonio
16 56
103 08
1907.3
7 22. 4E
42 14.0
.3364 '
7 21 E
42 07
.3374
MO.
Oaxaca
17 04
96 44
1907. I
7 20. 5 E
42 19.8
.3307 ,
7 17E
42 12
.3318
CI.
Sta. Lucrecia
17 26
95 02
1907.3
7 II.3E
42 53-9
•3372 1
7 loE
42 45
.3384
MO.
Isla Grande
17 40
loi 41
1880.9
1 7 26.4 E
7 14E
CS.d
San Juan Bautista
17 59
92 56
1907.7
' 6 38. I E
44 09. 7
.3266
6 38E
44 00
.3381
MO.
Coatzacoalcos
18 08
94 26
1880. I
7 10. 5 E
43 03. 3
•341 1
6 48E
44 06
.3294
CS.do
Do.
18 09
94 25
1889. I
6 53 E
43 03
.3361 1
654E
43 51
.3283
UN.di
Do.
18 09
94 26
1907.3
1 7 01.2 E
44 26.5
.3306
6 58E
44 18
.3319
MO.
El Hule
18 09
102 20
1907.4
1 7 20. 5 E
44 ip.8
•3306
7 18 E
44 03
.3318
MO.
Clarion I.
18 20
114 42
1880.8
• 8 23 E
39 34.0
.3392 i
8 48 E
40 16
.3318
CS.di
* Local disturbance; black mag^netic sand.
t G. H. Richards, observer, Phil. Trans. R: S. 1872, Sabine Contr. XIII.
MAGNETIC ELEMENTS IN CONTIGUOUS COUNTRIES. 83
Table I. — Observed magnetic elements and the values reduced to January i, i^o^ — Continued.
MEXICO— Continued
Observed
Reduced to igo!;
.0
.
lati-
Longi-
StatJon
tude
tude
Date
Source
N.
W.ofGr.
Ded'n
Incrn
H. Int.
Ded'n
Incl'n
H. Int.
CayoLobos
Tehuacan
/
18 22
f
87 22
1907- 5
f
/
45 58. 8
c.g.s.
.3234
/
f
45 52
c.g.s,
• 3249
MO.
18 28
97 28
1907
5
■ 7 40. I E
44 12.8
■3294
7 36 E
44 03
• 3307
MO.
Balsas
18 34
loi 44
1907
4
9 00.5 E
43 02. 8
•3324
8 57E
42 54
.3336
MO.
Matamoros, Izucar
18 36
98 28
1907
6
7 58. 8 E
44 08.4
•3303
7 54 E
43 58
.3316
MO.
Laguna de Terminos
18 38
93 00
1880
2
6 39. 9 E
44 18.3
■3390
6 10 E
45 20
.3270
CS.di
Laguna del Carmen
18 39
91 54
1907
7
6 18. 6 E
45 no
•3209
. 6 18E
45 02
.3225
MO.
Socorro I.
1843
110 54
1880
8
8 49. 6 E
41 18.7
•3464
, 9 18 E
42 04
• 3390
CS.di
Cocolopam
18 53
97 04
1856
6
8 28 E
42 51
.3494
7 42 E
44 H
.3307
SM.di
Cordoba
18 54
96 57
1907
3
45 OI-3
.3290
_ _-
44 52
• 3302
MO.
Cuemavaca
18 55
99 15
1907
4
8 06.8 E
44 33.2
•3302
8 02 E
44 24
• 3314
MO.
Potxero
18 56
9648
1856
6
8 39 E
42 51
■3492
7 53 E
44 14
• 3305
SM.di
San Andres
18 59
97 15
1856
7
8 13 E
42 38
•3499
7 27 E
44 01
.3312
SM.di
Puebla
19 03
98 14
1907
4
8 04. 5 E
44 45-7
.3291
: 8 02 E
44 37
• 3303
MO.
Tlamacas
19 03
98 39
1857
I
8 28 E
42 34
.3491
1 7 4iE
43 56
• 3305
SM.di
Manzanlllo
19 03
104 18
1907
I
8 31. 4E
43 58. 3
•3300
1 8 29E
43 52
.3309
MO.
Do.
19 03
104 20
1880
9
8 05.0 E
43 15- 8
•3375
, 8 20 E
44 08
.3289
CS.di
Near Roca Partida
19 06
112 00
1874
2
**8 20. 9 E
8 57 E
UN.d
Vera Cruz
19 12
9607
1888
9
7 12.7 E
44 20.4
•3275
7 21 E
45 07
UN. do
Do.
19 12
96 08
1880
I
7 26, 3 E
44 04.6
.3408
1 7 II E
45 07
• 3294
CS.di
Do.
19 12
96 08
1907
3
1 731.7E
45 23. I
•3300
7 26 E
45 14
.3312
MO.
Colima
19 12
103 51
1907
I
8*25.5 E
44 03.2
.3312
8 23E
43 57
.3321
MO.
Mirador
19 13
96 37
1856
8
8 02 E
43 50
•3468
; 7 15 E
45 13
.3281
SM.di
Near Benedicte I.
19 15
no 49
1874
2
**9 05. 8 E
9 42 E
UN.d
Mexico Hill
19 16
99 «9
1903
7
7 16. 6 E
44 47.8
.3222
7 19 E
44 52
.3215
MO.t
Chalco
19 18
98 51
1857
9 03 H
43 12
•3476
8 16E
44 35
.3290
SM.di
Toluca
19 18
99 39
1907
7
8 16.4 E
44 56.6
•3291
8 II E
44 47
.3304
MO.
Cuajimalpa
19 21
99 18
1907
I
7 39- 2 E
45 04- 4
•3300
7 34 E
44 57
.3310
MO.
Do.
19 21
99 18
1907
I
747.3E
44 59-7
•3292
7 41 E
44 52
.3305
CI .
Uruapam
19 25
101 57
1907
7
8 12.7E
44 20.0
•3304
8 08 E
44 11
.3317
MO.
Mexico Nat*l Obsy.
19 26
99 07
1894
6
, 7 43- 5 E
44 18. I
•3343
7 57 E
44 51
.3295
MO.
Xalapa
19 32
99 56
1907
8
' 727.7E
44 06. 8
•3269
7 22 E
43 57
.3283
MO.
Los Reyes
19 34
102 32
1907
7
8 28. I E
44 29.3
.3335
8 23E
44 21
.3348
MO.
Zapotlan
19 40
103 39
1907
I
8 38. 2 E
44 44.9
.3288
' 8 35E
44 38
• 3297
MO.
Apam
19 41
98 12
1907
5
45 51.9
•3148
45 43
.3160
MO.
Morelia
19 42
lOI 06
1906
9
8 19. 7 E
45 08.0
•33"
8 i6E
45 02
.3320
MO.
Ascencion Bahia
19 44
89 28
1907
5
4 44. 9 E
47 58.9
.3180
4 48E
47 51
• 3195
MO.
Campeche
19 50
90 33
1880
2
' 6 36. 7 E
46 20. 7
•3333
5 52E
47 24
.3211 '
CS.di
Teziutlan
19 50
97 26
1907
5
: . 7 55. 5 E
45 54.4
.3269
7 50 E
45 45
.3282
MO.
Zacatlan
19 56
97 59
1901
I
7 45- I E
46 21.6
.3300
7 53E
46 33
• 3279
MO.t
Acambaro
20 01
100 26
1906
9
• 8 06. 5 E
45 40.6
•3300
, 8 03 E
45 34
.3309
MO.
Tulancingo
20 05
98 22
1907
5
7 51. 6E
46 17. I
•3254
7 47E
46 08
• 3267
MO.
Peto
20 08
88 52
1907
7
5 29. I E
48 01.8
.3178
5 32E
47 54
.3194
MO.
Pachuca
20 08
98 44
1907
8
8 07. 9 E
46 25.4
•3274
8 03 E
46 15
.3288
MO.
Tulancingo
20 09
98 22
1901
3
7 31. oE
45 56. 7
•3273
7 39E
46 10
.3253
MO.tt
Huichapan
20 23
99 39
1907
8
8 02.4 E
46 46. I
.3286
7 56 E
46 36
• 3300
MO.
Tabo Bay
20 24
105 40
1874
2
8 54- 2 E
>_
9 30E
__ __
UN.d
LaPiedad
20 26
loi 42
1907
8 38- 9 E
45 55.8
•3270
835E
45 49
.3280
MO.
Cozumel, S. Miguel
20 30
87 12
1907
5
4 34- 6 E
49 14- 8
.3153
' 4 38E
49 07
• 3169
MO.
Cozumel I.
20 33
8657
1879
3
i 5 12.3E
48 06.5
.3309
4 22 E
49 02
.3182
CS.di
Ameca
20 34
104 10
1907
4
9 09. 6 E
45 35-4
.3303
9 06 E
45 28
.3314
MO.
Maxcanu
20 35
90 00
1907
5
5 35- 5 E
50 00.0
•3163
5 37 E
49 52
.3178
MO.
Queretaro
20 36
100 22
1907
8 20. 4 E
46 53. 7
8 16E
45 47
MO.
Penas Anchorage
20 36
105 16
1874
2
8 52.0 E
, 9 28 E
UN.d
Chemax
20 39
87 56
1907
6
5 05- 2 E
49 18.8
•3155
5 08 E
49 II
.3172
MO.
Guadalajara
20 40
103 21
1907
I
7 56. E
46 00. 7
.3274
7 51 E
45 54
• 3283
MO.
Punta Mita
20 46
105 32
1874
3
8 57.3 E
_
9 33E
UN.d
Menda
20 58
89 39
1907
5
5 38. 4 E
49 29. 8
•3167
5 40E
49 22
■ 3183
MO.
Morelos, Puerto
SI 00
86 52
1907
5
4 33. 8 E
49 58.8
.3159
4 38E
49 51
• 3176
MO.
Leon (rancho de
Tampa).
Lagos
21 07
loi 39
1907
8 18.9 E
47 15.8
•3238
8 15 E
47 09
.3248
MO.
21 07
loi 56
1896
4
_ - -_ _
46 40. I
.3292
47 02
• 3254
MO.
Temax
21 09
88 52
1907
7
5 34. E
49 36. 8
•3155
5 35E
49 30
.3170
MO.
Mugeres I.
21 15
86 46
1879
3
4 49. 3 E
49 32.9
.3257
3 58 E
50 28
• 3130
CS.di
Do.
21 16
8645
1907
5
3 41.1 E
50 27. I
•3127
3 44E
1 50 20
• 3143
MO.
** On ships,
t Journal "Teuestrial Magnetism," v. XI, p. 153; dip as published diminished by 2®
j M. Moreno y Anda, Journal "Terrestrial Magnetism," v. VII, p. 30.
tt V. Gama: MemoiresSoc. Cient. Mexico, Aug. 1902, p. 78.
84 MAGNETIC TABLES AND CHARTS FOR 1905.
Table I. — Observed magnetic elements and the values reduced to January i, 1^05 — Continued.
MEXICO— Continued
Observed
Reduced to looc.o
Station
Lati-
Longi-
'
Source
tude
tude
Date
['
N.
W.ofGr.
' Decl'n
Incl'n
H. Int.
Decl'n
Incl'n
H.Int.
1
Progresso
/
21 17
/
89 40
1880.2
1 '
6 25.7 E
/
148 52. 3
c.g.s.
.3269
/
5 39E
r
49 46
eg. 5.
.3146
1
CS.d I
Do.
21 17
89 40
1907.5
! 5 48. E
150 00.0
• 3137
5 50E
49 52
.3153
MO.
Lagos
21 21
loi 54
1907.0
. 8 30. 6 E I47 15. 4
.3245
1 8 27 E
47 07
• 3255
MO.
Tepic
21 31
104 57
1907.7
1 9 04. 5 E
' 9 18. I E
46 47. 8
.3248
9 00 E
46 40
.3260
MO.
San Bias
21 32
105 18
1880.9
46 20.8
■ 3322
9 46 E
47 13
.3245
CS.d I
Catoche, Cabo
21 36
87 04
1907.6
5 05. 3 E
i50 45- 9
'.3I2I
5 08E
50 38
• 3136
MO.
Linares ♦
21 52
99 28
1907.0
8 43.6 E
I52 27.6
1.3065
, 8 39E
52 21
• 3075
MO.
Aguascalientes
21 55
102 17
1897.6
8 14. 5 E
147 19-
1 . 3235
1 8 25E
47 42
3204
MO.**
Rio Verde
21 56
100 00
1907. I
8 23. 5 E
48 26. 2
• 3195
1 8 19E
48 19
.3205
MO.
Isabel I.
21 56
105 41
1874. I
9 24 E
_
10 00 E
UN.d
Valles
21 59
99 02
1907.0
8 II. I E
48 44.0
.3205
8 07 E
48 37
.3215
MO.
Arenas Cay
22 07
91 25
1880. I
6 32.9 E
49 35- 8
.3275
5 45E
50 32
.3153
CS.di
San Luis Potosi
22 09
ia> 55
1900.4
8 40. 7 E
48 12.5
• 3298
8 48E
48 29
.3277
MO.t
Do.
22 09
100 58
1907.0
8 43. 1 E
48 25. 2
.3509(?)
8 39E
48 19
MO.
Rincon de Romos
22 13
102 27
1907- 3
8 44. 9 E
48 28.6
.3190
8 40 E
48 22
.3201
MO.
Tampico - .
22 16
97 48
1907.0
8 01.3 E
49 32.3
.3180
7 57 E
49 25
.3191
MO.
Perez I.
22 24
89 42
1880. I
6 19. 2 E
50 09.7
.3253
5 31 E
51 05
.3129
CS.di
Guadalupe
22 47
102 33
1907.0
9 02.0 E
48 52.5
.3196
858E
4846
.3205
MO.
Zacatecas '
22 47
102 33
1907.0
9 02. 2 E
49 07. 3
.3196
8 58E
49 01
.3205
MO.
Do.
22 47
102 34
1902.6
8 57.3 E
_
.3195
9 02 E
-_ __
.3185
MO.tt
Cape San Lucas
22 54
109 55
1881. I
9 26. 2 E
47 23.2
•3275
9 50E
48 05
.3210
CS.di
Do.
22 53
109 55
1896. 9
9 02.9 E
47 34. 7
3339(?)
9 17E
47 55
UN.
San Jose del Cabo
23 04
109 41
1873. 2
10 32. 4 H
47 25.2
.3231
II 01 E
48 13
.3137
CS.di
23 04
109 41
1881. I
9 43-8 E
_
10 09 E
_ _ _ _
CS.di
Mazatlan
23 II
106 26
1907.2
10 04. 5 E
49 17-8
.3150
10 02 E
49 12
.3159
MO.
Do.
23 12
106 27
1881. I
9 39. 4 H
48 15.8
. 3250
10 07 E
49 07
• 3177
CS.di
Todos Santos
23 27
no 14
1896. 1
9 II. 9 E
49 00.4
.33o8(?)
j 9 27E
49 21
UN.
Observation Point
23 33
109 29
1875. I
9 57-5 E
10 25 E
1 UN.d
Catorce
23 42
100 57
1907.0
8 38. 4 E
50 39- 8
.3192
8 34E
50 33
.3202
MO.
Ciudad Victoria
23 43
99 08
1907.0
8 33. 5 E
50 59.
.3137
8 28E
50 54
• 3147
MO.
Bermejillo*
23 51
103 42
1907. I
9 14. 6 E
53 09.1
•3036
9 II E
53 03
.3045
MO.
Punta Arena
24 04
109 50
1875. I
10 06. 3 E
10 30 E
UN.d
La Paz
24 10
no 12
1907.2
1 10 46. 5 E
49 46.0
.3169
10 42 E
49 42
.3177
MO.
La Paz, El Mogote
24 10
no 21
1881. I
10 09. 2 E
49 10. I
.3238
10 35 E
49 52
.3173
CS.di
Pichilinque Bay
24 16
no 20
1881. I
9 45. I E
49 48. 5
.3175,^
10 08 E
50 30
.3111
CS.di
Do.
24 16
no 20
1897. 1
9 19. I E
50 22. 2
.324i(?)
9 36E
.50 37
UN.
El Conejo
24 21
in 30
1875.0
10 40.0 E
_
_ ___
II 04 E
UN.d
Cresainte I. '
24 21
in 30
1875.0
9 52.5 E
10 16 E
__
UN.d
Luponu Pt.
24 24
no 21
1875. I
9 25.7 E
_ . : _
9 50E
_ _ -_
UN.d
CanAtlan
24 31
104 46
1907.1
9 51. 8E
50 41.3.
.3124
9 47E
50 36
.3133
MO.
Altata
24 37
107 55
1874. I
1 10 40 Et
n 06 E
UN.d
Do.
24 39
108 00
1907.2
..
50 43. 4
_- __
50 38
MO.
Magdalena Bay *
24 38
112 09
1907.5
n 12. oE
48 46. 9
.3165
II 07 E
48 42
.3172
CS.8
Do.* =
24 38
112 09
1881.1
10 29. 1 E
48 18.7
•3243
10 53 E
49 01
.3186
CS.di
Do.*
24 38
112 09
1895. 2
9 57.7 E
48 31. 3
.3333(?)
10 18 E
48 52
UN.
Do.*
24 40
112 09
1907.5
II 17.3 E
49 24.5
•3147
II 12 E
49 19
• 3154
CS.8
San Juan Nepomu-
24 43
100 55
1900.4
9 05. 9 E
51 29.2
.3750(?)
9 17E
51 41
MO.t
Santa Maria Bay
24 45
112 16
1875.0
10 45- 3 E
n 08 E
UN.d
Isle San Josef
24 55
no 37
1881.1
9 47. 6 E
49 38. 5
.3153
10 10 E
50 20
.3096
CS.di
Playa Colorado
25 12
108 24
1874. I
10 40. 5 E
II 05 E
_- - _
UN.d
Boca Soledad
25 16
112 08
1875.0
n 07.5 E
_
II 25 E
_ _ - _
UN.d
Tepehuanes
25 21
105 46
1907. I
10 22. I E
51 51.6
.3076
10 18 E
51 46
.3084
MO
Parras
25 23
loi 03
1907. I
9 26. 4 E
52 39-5
.3072
9 22 E
52 33
.3083
MO.
Navachista
25 23
108 49
1874. I
10 20. 2 E
10 45 E
UN.d
Saltillo
25 25
loi 00
1907.0
9 02. 5 E
52 57.8
.3032
8 58E
52 52
• 3042
MO.
San Marcial Pt.
25 29
III 02
1873-9
10 57.5 E
II 18 E
UN.d
Do.
25 29
III 02
1875. I
10 n.o E
10 35 E
--
UN.d
Topolobampo
Point San Ignacio
25 34
25 36
109 10
109 17
1874. 1
1881.0
10 40. 5 E
10 15.3 E
II 10 E
10 39 E
-- --
UN.d
CS.d
Monterey
25 40
100 18
1907.0
8 59. E
53 23.8
•3044
!53E
53 17
.3054
MO.
Do.
25 40
100 18
1907.0
9 01.5 E
53 20.4
•3047
8 57E
53 14
.3058
1 CI.
* Local disturbance.
** M. Moreno y Anda:
t M. Moreno y Anda:
tt M. Moreno y Anda:
t On ship.
Journal "Terrestrial Magnetism,"
MS.
Journal "Terrestrial Magnetism,'
Vol. IV, p. 91.
' Vol. VIII, p. 76.
MAGNETIC ELEMENTS IN CONTIGUOUS COUNTRIES. 85
Table I. — Observed magnetic elements and the values reduced to January j, 190^ — Continued.
MEXICO — Continued
' Observed
Reduced to xqos
.0
.
lati-
tude
Lonin-
Station
tudc
Date
Source
N.
W.ofGr.
Decl'n
Incl'n
H. Int.
Decl'n
Incl'n
H. Int.
/
/
1 /
/
cg.s.
/
/
c. g. s.
San Pedro
25 46
102 59
1907.0
9 43- I E
53 00-8
.3060
9 38E
52 56
• 3070 1
CI.
Carmen I.
26 00
III 07
1873-9
n 27.7 E
II 45 E
UN.d
Loreto
26 01
III 20
1881.I
10 16.3 E
51 00.8
•3130
10 35 E
51 43
• 3075
CS.di
San Juanico Pt.
26 03(?)
112 4o(?)
1875.0
10 49- 5 E
II 10 E
UN.d
Camargo
26 16
98 51
1907.0
8 40. 6 E
54 23. 2
.3012
8 35 E
54 18
.3024
CL
San Juanico
26 16
112 28
1881.2
10 31.1 E
51 48.1
.3084
10 50 E
52 30
.3028
CS.di
Do.
26 16
112 28
1893. I
10 00. 8 E
52 08.0
.3196
10 28 E
52 32
.3168
UN.
Agiabampo
26 17
109 18
1874. I
12 01 E
_
12 15 E
UN.d
San Domingo Pt.
26 19
112 42
1875.0
10 21 E
10 35 E
_-
UN.d
Pulpito Pt.
26 31
III 27
1873- 9
; 10 50. 7 E
_ - _ _ _ _
II 05E
_ _ __
- -_ -
UN.d
Do.
26 31
111 27
1875. I
: II 33.6 E
_
II 48E
UN.d
Santa Barbara Bay
26 42
109 38
1881.0
10 48. 4 E
52 21.2
•3105
'11 10 E
53 03
-3050
CS.di
Escalon
26 44
104 19
1907.0
10 06.4 E
53 52. I
.3018
t 10 01 E
53 47
.3026
CL
San Ignacio Pt.
26 46
113 16
1875.0
12 07.8 E
12 22 E
UN.d
Point Abrecjos
26 47
113 31
1881.2
II 15-5 E
51 47-7
.3092
II 35 E
52 30
• 3038
CS.di
Do.
26 47
"3 32
1890.0
10 58 E
51 52
•3200(?)
II 26 E
52 21
UN.dj
Santa Barbara
26 49
105 47
1907.0
10 36. 4 E
53 47-6
• 3007
10 32 E
53 42
-3015
CL
Mulege
26 54
III 58
1881. 1
1 II 13-4 E
52 05.5
.3100
II 32 E
52 47
.3046
CS.di
Ciaris I
26 59
109 57
1874. I
II 16. 2 E
n 30 E
UN.d
Cuatro Cienegas
27 00
102 04
1907.0
9 44-0 E
54 37- 2
.2987
! 9 39 E
54 32
.2997
CI.
Ascension I.
27 06
114 x8
1881.2
11 23.0 E
51 43-4
• 3094
' II 42 E
52 20
-3039 '
CS.di
Do.
27 06
114 18
1889. 9
10 58. 5 E
51 53.3
-3202(?)
II 26 E
52 16
UN.di
Jiminez
27 06
>04 57
1902.6
9 57-6 E
•3030
1 10 04 E
-- __
.3023
MO.t
Do.
27 09
104 54
1907.0
10 26. 7 E
54 12. I
-2997
j 10 22 E
54 08
• 3005
CI.
San Marcos!.
27 10
112 06
1875. I
10 37.8 E
10 52 E
UN.d
Sierra Mojada
27 «9
J03 37
1907.0
10 02 .9 E
54 38. 6
•2990
9 58E
54 35
• 2998
CL
Santa Rosalia
27 20
112 18
1892.8
10 51 E
52 40
.3136
11 18E
53 06
• 3107
■ FN.
Off Lobos I.
27 20
1 10 38
1874. I
11 30.6 E
II 45 E
UN.
Santa Maria Cove
27 25
112 20
1881. X
11 06.3 E
52 56.8
.3080
II 25 E
53 33
-3025
CS.di
San Bartolome Bay
27 39
"4 52
1888.4
II 30 E
52 58.0
.3i65(?)
II 57 E
53 24
UN.d
Sabinas
27 53
loi 05
1907.0
9 45.4 E
56 00. 1
.2926
9 40E
55 55
-2936
CI.
Guaymas
27 55
1 10 53
1881.0
11 48. E
52 58.0
.3052
12 07 E
53 34
.2997
CS.di
Do.
27 55
no 51
1906.9
12 19.9 E
53 50. I
.2992
12 14 E
53 46
.2996
CI.
San Carlos Pt.
28 00
112 48
1873-9
12 00. I E
1 12 14E
UN.d
Do.
28 00
112 48
1875. I
1 II 45-7 E
._
1 12 ooE
-_
UN.d
San Pedro Anchorage
28 03
HI 16
1874.0
' 12 24. 6 E
_
' 12 39 E
--
UN.d
Cerros I.
28 03
"5 13
1888.3
II 40. 5 E
53 03. I
-3I22(?)
1 12 06E
53 30
UN.di
Do.
28 03
115 II
1881.2
II 58. 6 E
52 55-0
-3045
' 12 18E
53 29
• 2990
CS.di
Do.
28 04
115 12
1873. I
II 45. 2 E
52 30.5
.2999
1 12 ooE
53 18
. 2916
CS.do
Do.
28 04
115 12
1888.4 1
II 38.4 E
52 54-7
.3i57(?)
12 04 E
53 22
UN.di
Lagoon Head
28 14
114 06
1873- I
II 50. 8 E
12 05 E
UN.d
Do.
28 15
114 06
1888.0
II 31.0 E
54 00.7
.3i94(?)
II 57 E
54 28
UN.di
San Beneto I.
28 18
115 35
1889. I
1 1 26. 6 E
52 49-4
-328o(?)
II 54 E
53 14
UN.di
Santa Teresa Bay
28 25
112 52
1881.0
11 42.0 E
53 49-0
-3030
12 01 E
54 17
• 2975
CS.di
Chihuahua *
28 38
106 04
1902.5
10 31.0 E
55 50.6
-2939
10 38 E
55 57
.2932
MO.t
Chihuahua, Sta. A*
28 38
106 06
1906.9
13 28. 9 E
54 26. 2
-2993
13 24 E
54 22
.3000
CL
Chihuahua, Sta. B*
28 39
106 03
1906. 9 1
12 13.5 E
55 56.3
•2919
12 08 E
55 51
- 2926 \
CL
Rosalia Bay
28 40
114 14
1888. 2
9 26. 3 E
56 07. 2
-2955
9 53E
56 28
.2918 '
UN.di
Kino Bay
28 46
III 59
1874-
12 32.9 E
12 47 E
__ __
UN.d
Tiburon I.
28 46
112 22
1874.0 ,
12 28.2 E
_
12 42 E
__ __
UN.d
Las Animas
28 48
113 13
1873.9
12 35- 6 E
_.
12 49 E
_-
UN.d
Do.
28 48
113 13
1875. I
10 17.5 E
10 31 E
__
UN.d
RazaL
28 49
113 00
1873-9
12 52.5 E
_
13 06E
--
UN.d
Do.
28 49
113 00
1875. 2
1 12 30.0 E
_
12 44E
_ - _ _
UN.d
Guadalupe I.
28 55
118 15
1881.2
12 54.8 E
53 38.9
. 2961
' 13 17E
54 04
.2912
! CS.di
La Plaja, Maria Bay
28 56
114 32
1889.4
10 21.4 E
55 10.9
.3025(?)
! II 50E
55 32
UN.di
Angeles Bay
28 57
113 35
1873-9
12 41. 4E
1 12 56E
UN.d
Teraosachic
28 59
107 51
1906.9
II 22.6 E
55 49-4
-2927
II 17 E
55 46
-2933
CL
Angel de la Gardia I.
29 00
113 12
1875.1
1 12 28.8 E
12 43 E
1 UN.d
Hermosillo
29 04
no 56
.1906.9
' II 58. 8 E
55 26.6
.2926
II 53 E
55 24
.2930
, CL
Tiburon I.
29 12
112 27
1881.0
II 59-3 E
54 59. 2
.2986
12 18 E
55 22
.2930
' CS.di
Remedios Bay
29 14
113 40
1873.9
12 33- 4 E
12 49 E
UN.d
Palos I.
29 16
112 29
1874.0
13 00. 2 E
_
13 14 E
__ __
UN.d
Patos I., N. end
29 32
113 30
1875. 2
12 31. 9E
..
_- _ _
12 46 E
-_ __
UN.d
Mcjial.
29 33
113 35
1874.0
i 12 28.0 E
_
12 42 E
-- __
i UN.d
Do.
29 33
113 35
1875. I
i 12 04. 5 E
__
12 19 E
._ -_
1 UN.d
♦ Local disturbance.
t M. Moreno y Anda: Joturnal "Terrestrial Magnetism," Vol. VIII, p. 76.
86 MAGNETIC TABLES AND CHARTS FOR 1905.
Table I. — Observed magnetic elements and the values reduced to January i, igo^ — Continued.
MEXICO— Continued
Observed
Reduced to iqo<;.o
station
Lati-
tude
N.
Longi-
tude
W.ofGr.
Date
1
Dccrn
Incl'n
H. Int.
Decl'n
Ind'n
H. Int.
Source
f
/
f
f
1
c.g.s.
/
/
c. g, s.
Presidio del Norte
29 34
104 25
1852.5
10 16 E
55 41
__
56 34
CS.di**
San Geronimo I.
29 47
115 48
1881. 2
12 42. 2 E
54 30-
.2965
13 08 E
54 54
. 2916
CS.di
Do.
29 47
115 48
1888.4
12 23.6 E
54 52. 2
.3092(?)
12 53 E
55 12
UN.di
San Luis Gonzales
29 51
"4 25
1881.0
12 27.3 E
55 II-3
.2962 ;
12 53 E
55 35
• 2913
CS.di
Libertad Bay
29 54
"2 45
1874-
12 56 E
13 12 E
UN.d
Sepoca Bay
30 16
"2 53
1875. 2
12 16.7 E
12 33 E
-_ _-
UN.d
San Quentin
30 22
"5 59
1873-7
12 59.7 E
_ _
13 26 E
_ _ _ _
UN.d
Nueva Casas Grand es
30 25
107 56
1906.9
II 52.0 E
57 23.2
. 2855 ,
II 47 E
57 20
.2861
CI.
San Firrmin
30 25
114 40
1874-
II 14 H
II 39E
UN.d
San Martin I.
30 29
116 07
1873. I
13 20. 5 E
J
13 45 E
-- --
UN.d
Do.
30 29
116 07
1881.2
12 55.7 E
55 34-4
. 2940 1
13 25 E
55 55
.2893
CS.di
Do.
30 29
116 06
1888.5
12 23.2 E
55 21.0
.3o85(?),
12 55 E
55 37
UN.di
Cape Colnet
30 58
116 17
1889. 4
13 14. 9 E
56 27.2
.3046(?)
13 46 E
56 40
UN.di
Georges I.
31 01
"3 17
1874.0
13 29.9 E
1
13 50 E
- - _ -
UN.d
Do.
31 01
"3 17
1875.2
12 43- 5 E
_
13 04 E
_ _ _ ..
UN.d
Felipe
31 02
114 50
1881.O
12 57-2 E
56 25.2
. 2892 i
13 24 E
5646
.2844
CS.di
Rocky Point
31 17
113 33
1881.0
13 27.0 E
57 14-7
. 2882 ;
13 54 E
57 36
• 2834 1
CS.di
Espia
31 21
107 56
1855- 2
12 05 E
57 59
. 2878
12 22 E
58 38
• 2777
CS.dit
Adair Bay
31 30
114 08
1874.0
13 19- 7 E
13 46 E
UN.d
Santo Tomas Anch.
31 33
116 41
1889. 4
13. 46. 2 E
57 10.5
•2943(?)'
14 15 E
57 18
UN.di
Ciudad Juarez
31 43
106 30
1902. 6
_.
59 21.0
__.. !
59 25
1
MO.*
Phillips Point
31 46
"4 43
1881.0
13 05. 7 E
57 31-8
.2852
13 32 E
57 53
.2804
CS.di
Todos Santos
31 51
116 38
1881.3
12 00. 8 E
58 30- 6
. 2787 1
12 29 E
58 51
.2742
CS.di
Ensinada Anchorage
31 51
116 38
1873- 7
12 41.2 E
13 12 E
UN.d
Los Coronados Ids.
32 25
117 15
1889.4
13 09.4 E
57 49- 8
.2959(?)
13 43 E
■
57 57
— i
UN.di
WEST INDIES AND BAHAMA ISLANDS
North of Kingston and west of meridian 6g° IV.
/
,
/
/
c. g. s.
/
/
c. g. s.
Kingston
17 59
76 54
1905.3
I 30. I E
47 21.8
.3131
I 30 E
47 21
.3133
CS.5
San Pedro de Macoris
18 28
69 20
1903.2
02.6 W
49 01.
.3024
1 12 W
49 07
.30H
CS.3tt
Santo Domingo
18 29
69 53
1903.2
03.0 E
48 37. I
.3026
1 06W
48 43
•3013
CS.3tt
Port au Prince
18 33
72 25
1887.3
I 44 E
47 11.5
1 I ooE
47 42
FN.t
Port Plata
19 49
70 41
1889. 9
36. 6 E
49 50.4
.3074
08W
50 20
.2990
UN.di
Cape Cruz
19 50
77 44
1902.3 '
I 41. 2 E
I 37 E
__ -_
UN.
Ensenada de Mora
19 54
77 19
1903- 2 1
I 48. 3 E
48 21.8
.3101
I 45 E
48 25
.3087
UN.
El Portillo
19 55
77 II
1890.0
2 33- 9 E
1 I 59 E
-_ __
UN.
Rio Tarquino
19 56
70 45
1902.3
I 29. E
._
I 24 E
__ -_
UN.
Guantanamo
20 00
75 15
1899. I
43- 5 E
_.
34E
_- _-
UN.
Santiago
20 00
75 50
1903.2
I 32. 4 E
50 44.2
.3048
I 29 E
50 48
.3036
S?;3tt
Do.
20 00
75 51
1887. I
2 33. 1 E
48 40
I 45 E
49 II
FN.t
Santiago (near " Club
20 00
75 51
1899.2
I 45 E
._
I 35 E
-- _-
UN.
Nautics")
Manzanillo
20 21
77 08
1902.3 j
I 40. 2 E
I 36 E
_-. _-
UN.
Baracoa
20 22
74 29
1903.2
59. 8 E
50 37. 7
•3042
57E
50 41
•3031
CS.3tt
Santa Cruz del Sur
20 42
78 00
1902.3
1 42. 2 E
I 38 E
UN.
Port Tanamo
20 45
75 20
1901.5
I 02. I E
---_
56E
__ __
-.___
UN.
NipeBay,Carnero Pt.
20 45
75 45
1900.5 1
I 06 E
-_-_
58 E
__ __
----
UN.
Pilot Point
20 47
78 57
1902. I
2 06.4 E
2 02 E
_> _-
UN.
Banes
20 54
75 41
1900. 2
I 17-5 E
I 09E
__ __
UN.
Cayo Grande
21 00
79 14
1902. I
2 06. 8 E
_ _ _ ___
2 02 E
-- -_
-_-_
UN.
Gibara Homos Pt.
21 07
76 10
1900.0 '
1 32.9 E
I 24 E
_ - _-
UN.
Gibara
21 07
76 10
1903.2
I 14. 7 E
50 45. 6
.3050
I 12 E
50 49
.3039
CS.3tt
Port Padre
21 15
76 30
1900.5
I 03 E
55E
- - __
___ _
UN.
Ensenada de Cara-
21 27
82 56
1902.0 1
3 06.6 E
__ __--
____
3 02 E
-- --
«•— -
UN.
pachi bey I. of
Pines)
Cocodrilos Cove, 1.
21 28
83 04
1902. I
3 03. I E
2 58E
__ -_
UN.
of Pines
♦* U. S. andj Mexico Boundary Survey; W. H. Emory, observer; Am. Acad. Sc. Vol. VI,
t M. Moreno y Anda: Journal "Terrestrial Magnetism," Vol. VIII, p. 76.
tt Inclination supplied.
X French navy, M, Aubrey.
1856.
MAGNETIC ELEMENTS IN CONTIGUOUS COUNTRIES. 87
Table I. — Observed magnetic elements and the values redticed to Jamuiry i, igo^ — Continued.
WEST INDIES AND BAHAMA ISLANDS— Continued
North of Kingston and west of meridian 69° W. — Continued.
1;
Observed
Reduced to
X90<!
.0
.
Lati-
tude
Longi-
tude
Source
Station
Date
J
N.
W.ofGr.
1 Decl'n 1 Incl'n
H. Int.
Decl'n
Incl'n
H. Int.
/
f
' /
/
c. g. S.
f
/
c. g, s.
Nuevitas
21 30
77 15
1900-3
I 36.8 E -.
I 29 E
__
__
UN.
Rosario Cay
21 36
81 54
1902
1 2 54. 7 E
2 50E
__
__
UN.
Port Frances, L of
21 36
83 09
1902
I 3 02.3 E
__
2 57 E
__
__
UN.
Pines
1
Tucaro
Tunas
21 37
78 51
1902
3
' I 42.9 E
--
I 38 E
__
UN.
21 38
79 34
1902
3
2 20. 9 E
2 16E
__
UN.
East Guano Cay
21 39
81 02
1902
I
2 28 E -
_ _ -_
2 23E
__
---_
UN.
Cape Corrientes
21 44
84 30
1902
3 42.4 E --
3 37E,
__
__
1 UN.
Casilda
21 45
79 59
1902
3
, 2 17.2 E --
-- --
2 X3E
__
■ UN.
Colorado Reef
21 54
84 52
1901
4
' 3 43.8 E ..
3 38 E
__
; UN.
Cape San Antonio
21 55
84 55
1879
3
4 44. E 50
14.9
•3244
3 45 E
50
58
.3127
1 CS.di
Piedras Cay
21 58
81 07
1902
2
. 2 37. 1 E -
2 32 E
; UN.
Arroyos
22 20
84 20
1903
, 3 46 E -
3 43E
__
_- -_
1 UN.
Batabano
22 42
82 18
1905
4
2 55.5 E 52
34. I
• 3030
2 56E
52
33
• 3032
CI.
Pinar del Rio
22 56
83 42
1905
4
3 45-6 E 51
56.8
• 3056 !
3 46E
51
56
• 3058
CI.
Bahia Honda
22 58
83 12
1879
2
; 4 03.4 E 52
18.4
.3162
3 06E
53
01
.3050
CS.di
Do.
22 58
83 10
1904
3
1 3 I4-8E --
3 14E
_.
UN.
Cabanas
22 59
83 00
1904
4
3 01.3 E -.
3 ooE
._
__
UN.
Matanzas, A
23 03
81 35
1905
4
, 2 27.7 E 52
58.6
.3008
2 28E
52
58
.3010
CI.
Matanzas
23 03
81 37
1879
2
3 26. 4 E
52
23- 4
• 3146
2 29E
52
56
.3049
CS.di
Matanzas, B
23 04
81 36
1905
4
2 35- 9 E
53
06.1
.3010
2 36 E
53
05
.3012
CI.
Clarence Town
23 06
74 59
1903
5
13.4 W
53
47-3
.2939
X5W
53
51
.2930
t
Habana, villa
23 07
82 22
1903
2
3 02. 5 E
52
54.0
• 3045
2 59 E
52
58
• 3035
CS.3t
Do.
23 07
82 22
1905
4
2 59. I E
52
59-8
.3030
3 ooE
52
59
.3032
CI.
Habana, at Cabana
23 07
82 22
1902
4
2 42. I E ',-
2 38 E
UN.
Habana, at Tris-
23 08
82 22
1902
4
2 37. 2 E -
2 33E
__
__
UN.
comia Resn.
Habana, college
23 08
82 22
1903
2
' 3 04.4 E 52
55.0
.3048
3 01 E
52
59
.3038
CS.3t
Do.
23 08
82 22
1905
4
' 2 57.8 E 52
59.1
.3028
2 58E
52
58
.3030
CI.
Water Cay
23 59
80 21
1879
2
2 50. 7 E
53
4X.6
.3109
I 48 E
54
13
.2997
CS.di
Chirivico
24 00
79 45
1900
4
I 22. 4 E
I 15 E
UN.
Cockburntown
24 04
74 26
1903
5
18.0 W
55
03.2
.2882
20W
55
07
.2873
t
Nassau, Prov. I.
25 06
77 20
1879
X
I 25. 6 E
55
50.5
.2998
23E
56
10
.2886
CS.di
Nassau, old Gov.* H.
25 05
77 22
1903
5
20. 1 E
56
09.5
.2872
18 E
56
H
2864
t
Nassau, pub. sq.
25 05
77 21
1903
5
13. X E
II E
---_
t
Nassau, Hog I.
25 06
77 21
1903
5
24 E
22 E
__
t
South Bernini
25 42
79 18
1879
2
2 27.9 E
56
20.3
• 2973
I 25 E
56
40
.2876
CS.di
Hope Town
26 31
76 58
1903
6
J
58
06.7
- --
58
II
t
t Magnetic observations in the Bahama Islands by O. L. Fassig, Johns Hopkins ^ress, Baltimore, 1905.
X Inclinations supplied.
table: II.
MAGNETIC OBSERVATIONS ON THE U. S. COAST AND
GEODETIC SURVEY VESSELS JANUARY 1,
1903, TO JUNE 30, 190T.
89
MAGNETIC OBSERVATIONS AT SEA.
Explanatory remarks.
In Table II are compiled the results of the ocean magnetic observations made on the vessels
of the Coast and Geodetic Survey from January i, 1903, to June 30, 1907, north of the parallel 15°
north, in the Atlantic Ocean, Gulf of Mexico, and Pacific Ocean. The observed results for declina-
tion (variation of the compass), inclination, total intensity, and horizontal intensity are given, also
the geographic position, date, ship, number of headings of ship observed upon and character of sea,
so as to enable one to form some general idea, at least, of the value of the observations. As the
observations are within a few years of the intermediate epoch, 1905.0, it was not considered worth
vrhile to reduce them to 1905.0, especially as the reduction would be considerably smaller, in general,
than the observation error.
In addition to these data there were utilized preliminary results obtained by the Magnetic Sur-
vey yacht Galilee, of the Carnegie Institution, in the Pacific Ocean, as also the results of observations
made both in the Atlantic and in the Pacific oceans by vessels of the British navy, the French navy,
and United States Navy within the past ten or fifteen years. In view of the complete compilations
of magnetic data for all regions undertaken by the Carnegie Institution, Table II gives only the
results obtained by the Coast and Geodetic Surv^ey vessels.
Summary of results tabulated.
Number of-
Localities
stations
Declinations
Inclinations
Intensities
Atlantic Ocean
Gulf of Mexico
Pacific Ocean
lOI
19
46
157
28
56
147
27
51
122
24
34
114
24
34
ToUl
166
241
225
180
172
Table II. — Magnetic Observations on the United States Coast and Geodetic Survey vessels, from
January i, 1903 , to June 30, 1907.
ATLANTIC OCEAN NORTH OF is** N.
Observed
.
Lati-
W.ofGr.
i
Ship
No. of
head-
ings t
station
tude N
Date
Decl'n
Incl'n
T. Int.
H. Int.
Sea
/ /
f
/
c.g.s.
c.g.s.
At sea
17 56 66 30
1906. I
j I 31 w
48 21
•4508
.2996
1 Explorer
16
Sm.
Do.
17 57 63 20
1907.2
! 3 06 vv
49 15
•4463
.2913
do.
3
Lt.sw.
Mayaguez
18 15 , 67 12
1904. I
49 W
49 10
.4486
• 2933
Bache
16
Sm.
Do.
18 15 ,67 12
1904.4
58 W
49 20
•4531
• 2953
do.
16
Sm.
Fajardo Roads
18 21 65 36
1903. I
I 45 w
49 02
Blake
«i6
Mod.sw.
Do.
18 21 1 65 36
1903- 4
I 35 W
49 15
.458^
.2990
do.
16
Sm.
Do.
18 21 ,65 36
1904.4
49 28
•4570
.2970
do.
16
Sm.
Do.
18 22 65 36
1904.2
52 W
49 19
•4558
.2971
do.
16
Mod.sw.
Do.
18 21 65 36
1905- 3
I 41 W
49 16
•4539
. 2962
Explorer
16
Sm.
Do.
18 21 65 36
1905- 4
I 38 w
49 26
•4539
.2952
do
16
Mod.sw.
Do.
18 21 65 36
1906. I
_ _ _
49 06
•4534
.2969
do.
16
Mod.sw.
Do.
18 21 65 36
1906.4
2 03 vv
49 22
•4544
• 2959
do.
16
Lt.sw.
Do.
18 21
65 36
1907. I
2 05 W
49 22
■4558
.2968
Bache
16
Lt.sw.
Do.
18 21
65 36
1907. I
! 2 06 W
do.
8
Mod.sw.
Do.
18 21
65 36
1907.4
2 23 W
49 23
.4554
.2965
do.
16
Sm.
At sea
20 14 .
66 51
1904.2
I 50 w
51 18
.4701
• 2939
Blake
16
Mod.sw.
Do.
21 02
64 57
1907.2
4 loW
52 46
.4699
• 2843
Explorer
3
Mod.sw.
Do.
21 03
66 15
1906.0
441 w
52 05
•4725
.2904
do.
3
Hvy.sw.
Do.
21 12
67 17
1904. 2
_ --
53 06
.4767
.2862
Blake
16
Mod.sw.
t Unless otherwise designated, the ship was swung with both helms on the same points, the number of points being
eiven by the numeral. When the number of points is less than 8, it means that either the swing was incomplete,
for one reason or another, or that observations were made on the course, a point port, a point starboard, and back
on course.
t {The ship was swung with but one helm.
91
92
MAGNETIC TABLES AND CHARTS FOR 1905.
Table II. — Magnetic Observations on the United States Coast and Geodetic Survey vessels ^ from
January j, 1903, to June jo, igoy — Continued.
ATLANTIC OCEAN NORTH OF 15^ N.— Continued
Observed
Station
Lati-
Longi-
tude
W.ofGr.
Date
Ship
No.of
head-
ings t
tude N.
Decl'n
Ind'n
T. Int. H. Int.
Sea
At sea
/
21 35
/
67 25
1905.2
/
2 42 W
/
53 03
e.g. 5. c.g.s.
. 4767 . 2866
Explorer
16
Rough
Do.
21 52
67 47
1905
4
I 49 W
53 02
.4782 '. 2876
do.
16
Hvy.sw.
Do.
22 00
68 00
1904
I 1
I 57 W
54 08
. 4782 . 2808
Bache
8
Rough
Do.
22 10
74 20
1905
2 '
47 E
_ _
do.
2
Sm.
Do.
22 12
66 32
1907
4 1
3 20 VV
54 02
.4780 '. 2807
do.
8
Lt.sw.
Do.
22 12
67 07
1906
4
53 16
.4818 .2882
Explorer
3
Mod.sw.
Do.
22 15
68 55
1907
I 1
2 07 W
54 06
.4814 .2822
Bache
8
Hvy.sw.
Do.
23 05
68 25
1905
4
2 05 w
54 33
.4857 .2817
Explorer
3
Hvy.sw.
Do.
23 26
68 12
1905
2 ,
2 39 W
55 05
• 4939 ,• 2827
do.
3
Mod.sw.
Do.
23 30
68 09
1904
2
2 29 W
55 20
.4943 .2812
Blake
16
Sm.
Do.
23 55
6643
1907
2 1
3 50 W
56 08
.4966 t.2767
Explorer
3
Mod.sw.
Do.
24 00
66 30
1906
t
3 03 W
55 25
•4887 ,.2774
do.
16
Mod.sw.
Do.
24 04
67 54
1906
4 1
2 1
2 22 \V
56 02
•4935 2757
do.
•16
Mod.sw.
Do.
24 29
68 35
1904
3 26 W
56 26
.5005 1.2767
Blake
16
Sm.
Do.
24 46
80 34
1906
4 1
2 22 E
55 33
.5120 .2896
Bache
8
Lt.sw.
Do.
24 55
6843
1905
2
2 50 w
5648
•5031 '2754
Explorer
16
Mod.sw.
Do.
24 55
80 27
1906
V\
I 18 E
55 46
.5183 .2916
Bache
8
Sm.
Do.
25 15
68 15
1906
I 12 W
56 55
.5030 .2746
Explorer
3
Mod.sw.
Do.
25 16
69 35
1904
I 1
2 40 W
57 34
.5031 .2698
1 Bache
do.
8
Hvy.sw.
Do.
25 16
71 28
1907
I
2 51 w
57 05
.5070 1.2755
8
Hvy.sw.
Do.
25 48
77 17
1906
I
23 w
57 23
.5254 ,.2832
1 do.
8
Sm.
Do.
26 13
66 56
1907
4
4 40 w
58 04
.5032 .2662
1 do.
Explorer
8
Lt.sw.
Do.
26 48
69 46
1905
2
3 20 W
58 57
.5209 .2689
3
Mod.sw
Do.
27 09
68 46
1907
2
4 20 W
59 36
.5180 .2621
1 • do.
8
Lt.sw.
Do.
27 28
70 52
1904
4 !
3 40 W
59 09
.5235 L2684
Blake
16
Mod.sw.
Do.
28 ID
71 10
1904
I ,
3 04 W
60 24
.5298 .2617
' Bache
8
Hvy.sw.
Do.
28 12
71 04
1903
4 '
60 03
.5349 -2670
1 Blake
8
Rough
Do.
28 16
71 00
1903
I 1
3 58 W
59 55
..._ 1 .._.
' do.
8
Mod.sw.
Do.
28 18
70 25
1905
2
3 40 W
60 10
.5265 .2619
Explorer
16
Mod.sw.
Do.
28 53
73 23
1907
I 1
3 05 W
60 38
.5345 .2621
I Bache
8
Hvy.sw.
Do.
29 59
76 13
1906
I
2 33 W
62 14
.5532 .2577
' do.
8
Hvy.sw.
Do.
30 01
70 23
1907
2
4 06 W
61 56
•5431 -2555
1 Explorer
3
Mod.sw.
Do.
30 g8
71 25
1905
2
4 38 W
62 03
.5403 .2532
1 do.
3
Hvy.sw.
Do.
30 14
70 27
1906
•4 1
348W
62 12
.5380 .2509
' do.
3
Mod.sw.
Do.
30 46
72 39
1904
4 1
3 52 W
62 47
.5472 .2503
! Blake
16
Mod.sw.
Do.
30 56
81 12
1905
•4
12 E
62 32
.5525 1.2548
1 Bache
8
Choppy
Do.
31 15
72 52
1904
I 1
3 12 W
63 32
.5485 1.2445
' do.
8
Sm.
Do.
31 22
72 06
1905
2 '
4 26 W
63 30
•5494 I- 2451
1 Explorer
16
Mod.sw.
Do.
31 26
71 19
1906
4 1
4 42 VV
63 30
. 5486 . 2448
1 do.
16
Lt.sw.
Do.
31 40
72 56-
1904
4 i
407 w
63 07
.5565 |. 2516
Bache
8
Rough
Do.
31 53
73 16
1905
4
3 33 W
64 06
. 5494 .. 2400
1 Explorer
16
Hvy.sw.
Do.
32 34
75 36
1906
I
3 59 W
64 37
. 5660 '. 2426
; Bache
8
Lt.sw.
Do.
Z2 35
74 20
1907
I 1
4 38 W
1
! do
7+3
Rough
Off Charlestown
32 42
79 46
1903
4 1
51 w
_. --
1 do.
16
Roll
Do
32 45
79 53
1903
5
I 01 W
_ _ -
1 Hydrog.
J16
At sea
33 12
73 02
1905
2 1
2 52 w
65 08
•5585 .2349
' Explorer
3
Rough
Do.
33 13
73 17
1904
2 ,
4 35 W
65 00
.5658 .2391
1 Blake
16
Mod.sw.
Do.
2>i 15
72 51
1906
4
5 10 W
65 II
.5611 .2355
; Explorer
3
Mod.sw.
Do.
33 25
75 21
1906
I 1
65 27
.5706 .2371
' Bache
8
Mod.sw.
Do.
33 30
74 02
1905
4 ;
3 50 W
65 06
■5637 2374
1 Explorer
3
Hvy.sw.
Do.
:S3 34
74 55
1905
2
3 25 W
!
Bache
5
Rough
Do.
34 00
74 35
1904
I
4 23 W
66 08
.5678
•2297
do.
8
Sm.
Do.
35 25
74 43
1907
2
4 27 W
67 43
■ 5814
.2205
Explorer
3
Mod.sw.
Do.
36 08
75 30
1906
4
444W
67 57
• 5794
•2175
Bache
8
Lt.sw.
Do.
36 12
75 28
1905
5 1
67 45
• 5786
. 2191
do.
8
Sm.
Hampton Roads
36 58
76 21
1903
5
I V2 W
__
do.
16
Sm.
Do.
37 01
76 14
1903
5 1
4 07 w
K^-
ti6
Sm.
Do.
36 59
76 08
1903
6 '
4 30 W
_ _ _ _
16
Sm.
Do.
36 59
76 08
1903
6 1
4 37 W
__ _-
do.
«8
Sm.
Do.
36 57
76 22
1904
I i
4 22 W
68 26
.5856
•2153
Bache
16
Choppy
Do.
36 57
76 22
1904
I 1
4 36 W
68 38
.5843
.2129
1 do
16
Choppy
fUnless otherwise designated, the ship was swung with both helms on the same points, the number of points being
given by the numeral. When the number of points is less than 8, it means that either the swing was incomplete,
for one reason or another, or that observations were made on the course, a point port, a point starboard, and back
on course.
J The ship was not swung for each helm on the same points, though the number of points was the same.
Xt The ship was swung with but one helm.
MAGNETIC OBSERVATIONS AT SEA,
93
Table II. — Magnetic Observations on the United States Coast and Geodetic Survey vessels, fror/i
January j, jgoj, to June jo, igoy — Continued.
ATLANTIC OCEAN NORTH OF 150 N.— Continued
Observed
Lati-
tude N
Longi-
tude
Date
Ship
No. of
head-
Station
Sea
W.ofGr.
Ded'n
Ind'n
T. Int.
H, Int.
in«st
/
/
/
/
c. g. s.
c. g. s.
Hamptott Roads
36 57
76 22
1904.2
445W
68 31
.5853
•2144
Blake
16
Sm.
36 57
76 22
1904.
4 !
433W
68 27
•5852
.2150
Bache
16
Sm.
Do!
36 57
76 22
1904.
4 ■
433W
68 38
•5849
.2131
Blake
16
Sm.
Do.
36 57
76 22
1904
6 ;
4 22 W
68 43
■5872
. 2131
Bache
16
Sm.
Do.
36 59
76 12
1904
6
. 4 19W
69 03
.5890
.2106
Blake
«x6
Sm.
Do.
36 58
76 21
1905
I
454W
68 38
.5832
.2125
Bache
16
Sm.
Do.
36 58
76 21
1905
I
4 20W
_ _ -_
do.
16
Sm.
Do.
36 59
76 09
1905
2
4 27W
- _ __
Explorer
16
Choppy
Do.
37 00
76 09
1905
2
4.46 w
68 35
.5908
•2157
do.
16
Sm.
Do.
36 57
76 06
1905
4
4 18 W
6845
•5831
.2113
do.
16
Lt.sw.
Do.
37 00
76 12
1905
5
5 16W
6843
.5837
. 2119
do.
16
Choppy
Do.
36 56
76 04
1905
6
4 16W
68 35
■5867
. 2142
do.
16
Sm.
Do.
36 59
76 20
1905
6
450W
_- •_
____
• _---
Bache
5
Lt. sw.
Do.
36 59
76 20
1905
6
427W
68 33
• 5794
. 2119
do.
16
Sm.
Do.
36 57
76 21
1906
. 447W
6843
.5988
•2174
do.
16
Sm.
Do.
36 59
76 10
1906
4 29W
68 50
•5887
. 2126
Explorer
16
Sm.
Do.
36 57
76 07
1906
4
434W
68 55
•5879
.2115
do.
16
Lt. sw.
Do.
36 58
76 21
1906
4
429W
68 38
.5860
.2135
Bache
16
Sm.
Do.
37 00
76 18
1906
6
453W
6845
•5865
.2126
Explorer
16
Sm.
Do.
36 58
76 22
1906
<5
504W
6845
•5871
.2128
Bache
16
Sm.
Do.
36 57
76 06
1906
9
442W
6843
_ •— _
Explorer
16
Sm.
Do.
36 58
76 21
1907
I
4 02 W
6839
.5848
. 2129
Bache
16
Sm.
Do.
36 58
76 21
1907
I
430W
_-__
do.
16
Sm.
Do.
36 58
76 21
1907
4
435W
68 39
.5842
. 2127
do.
16
Sm.
Chesapeake Bay
37 38
76 09
1905
8
5 18 W
69 22
.5920
.2086
Explorer
16
Sm.
Do.
38 02
76 22
1907
I
509W
69 38
•5930
.2064
do.
8
Sm.
Do.
38 06
76 30
1903
9
5 12 W
_-__
Hydrog.
16
Sm.
Do.
38 13
76 19
1906
9
5 16W
69 44
.5995
•2077
Bache
16
Mod.sw.
Do.
38 20
76 23
1903
8
5 14 W
69 22
.5987
.2110
Blake
16
Sm.
Do.
38 20
76 23
1904
8
5 18W
6946
.5962
.2062
do.
16
Sm.
Do.
38 22
76 20
1904
2
449W
69 43
.5965
.2068
do.
16
Sm.
Do.
38 30
76 25
1903
I
509W
6956
.5959
.2045
do.
16
Sm.
At sea
37 43
75 02
1905
6
4 ooW
71 27
.5797
.1843
Explorer
Blake
3
Lt. sw.
Do.
37 53
75 05
1904
8
455W
3
Mod. sw.
Do.
38 08
75 00
1905
9
558W
69 52
.5928
.2041
Badie
8
Mod.sw.
Do.
38 15
74 50
1906
9
6S9W
69 5»
.5848
. 2014
Explorer
8
Mod. sw.
Do.
38 35
74 41
1906
•9
5 32 W
70 23
■5915
.1986
do.
8
Mod. sw.
Delaware Breakwater
38 48
75 07
1903
6
559W
_-__
Bache
16
Sm.
Do.
38 49
75 07
1903
6
6 02 W
-- __.
_---
do.
16
Hvy. SW;
At sea
38 51
74 28
1904
8
_ _-
70 08
--__
_-__
Blake
1
Do.
39 00
74 24
1904
8
4 20 W
do.
3
Mod. SW.
Do,
39 II
73 22
1905
6
8 II W
70 36
•5958
•1979
Explorer
16
Mod. SW.
Do.
39 52
74 00
1906
9
7 58 W
71 20
.6031
•1930
Bache
8
Sm.
Do.
40 08
72 34
1904
6
9 40W
71 27
•5874
. 1900
Blake
16
Mod. SW.
Do.
40 17
73 20
1906
6
9 15 w
71 43
.5975
.1874
Explorer
8
Mod. sw.
Do.
40 28
71 47
1905
6
9 25W
71 29
•5943
.1887
do.
3
Mod. sw.
Do.
40 26
73 55
1906
9
936W
71 46
.5884
. 1841
1 do.
3
Lt. sw.
Do.
40 32
72 09
1904
8
8 14W
-.. . .
Blake
2
Sm.
New York Hbr.
40 34
74 02
1903
9
8 25W
__
Bache
16
Sm.
At sea
40 43
71 54
1904
8
_ _-
71 32
•5957
.^887
Blake
3
Sm.
Do.
41 10
71 12
1904
8
_ _ -
71 35
--__
____
do.
I
Long Island Sd.
Block Island Sd.
41 10
72 43
1906
9
9 08 W
72 36
•5932
•1774
Explorer
8
Sm.
41 14
71 46
1906
9
II 29 W
do.
16
Sm.
Vineyard Sd.
41 23
70 52
1904
6
12 09 w
72 19
•5949
. 1807
Bache
8
Rough
Gay Head
41 24
70 50
1903
6
12 47 W
do.
16
Sm.
Cuttyhunk
41 27
70 54
1903
7
12 08 W
-- -_
_-__
Blake
16
Sm.
Nantucket Sd.
41 29
70 33
1906
9
11 46 W
72 16
•5925
. 1805
Explorer
16
Sm.
Newport
41 30
71 21
1906
6
12 17 W
72 38
.5971
. 1782
do.
16
Sm.
New Bedford
41 31
70 53
1903
6
II 50 W
__- _
Blake
16
Sm.
Buzzards Bay
41 32
70 52
1903
.8
12 34 w
72 19
.6010
.1826
do.
16
Sm.
At sea
41 42
69 30
1905
8
14 05 w
72 48
•5959
. 1762
Explorer
16
Mod. sw.
Do.
43 15
68 51
1904
8
15 15 w
73 02
•5952
•1737
> Blake
3
Mod. sw.
fUnless otherwise desienated, the ship was swung with both helms on the same points, the number of points being
eiven by the numeral. When the number of points is less than 8, it means that either the swing was incomplete,
for one reason or another, or that observations were made on the course, a point port, a point starboard, and back
on course.
it The ship was swung with but one helm.
94
MAGNETIC TABLES AND CHARTS FOR 1905.
Table II. — Magnetic Observations on the United States Coast and Geodetic Survey vessels, from
January j, igoj, to June jo, igoy — Continued.
ATLANTIC OCEAN NORTH OF 15** N.— Continued
Station
Portland Hbr.
Johns Bay
At sea
Penobscot Bay
Do.
Rockland Hbr.
Do.
Southwest Hbr.
Bar Harbor
French mans Bay
Do.
Do.
Do.
Do.
Do.
Lati-
tude N.
43 36
43 51
44 05
44 06
44 08
44 06
44 07
44 16
44 20
44 27
44 28
i 44 27
, 44 22
44 24
44 25
Lonsi-
tude
Date
W ofGr.
/
70 10
1906.8
69 32
1903- 8
69 GO
1906.8
6g 04
1905.6
69 02
1905- 8
69 05
1906.8
69 04
1906.6
68 17
1905-8
68 09
1903.7
68 II
1904.6
68 13
1904.6
68 13
1904.7
68 10
1904.8
68 10
1904.8
68 12
1905.7
Oboerved
Decl'n
Incl'n I T. Int.
** ' \c.g.s.
74 19 1.6032
15 46 W
15 33 W
15 37 W
16 07 W
16 31 W
15 59 W ,
16 05 W I ,^ ., ,.^^,^
16 46 W I 74 34 1.6048
17 15 w
16 16 w '
16 16 w 1
16 44 W
16 57 w :
16 38 w I
16 46 w <
74 24
74 08
74 24
74 32
74 14
74 30
74 32
|.6o3i
•5989
.6006
.6025
5945
■5985
.5982
74 17
74 42 . 5998
74 34 .5948
H. Int.
c. g. s.
I63I
.1626
• 1637
■ I6I5
. 1607
■ I6I5
. 1610
1599
1595
1583
1583
Ship
Bache
do.
do.
Explorer
do.
Bache
do.
do.
do.
Blake
I Bache
Blake
Bache
Blake
Bache
GULF OF MEXICO AND CARIBBEAN SEA
PACIFIC OCEAN NORTH OF 15° N.
No. of I
head- 1 Sea
ingsf
16
16
16
16
16
16
16
x6
16
16
16
16
16
16
16
Long. sw.
Sm.
Hvy. sw.
Sm.
Lt.sw.
Sm.
Sm.
Sm.
Sm.
Sm.
Sm.
Sm.
Choppy
Sm.
Sm.
/
/
/
/
c. g. s. c. g. s.
Limon Bay
9 22
79 56
1905.3
4 40E
- _ _ _
____
' Bache
16
Hvy. sw.
Kingston
17 58
76 47
1905
2
I 58 E
47 37
.4634 .3124
j do. •
16
Sm.
Do.
17 58
76 47
1905
3
1 52 E
47 22
.4626 .3133
do.
16
Sm.
At sea
20 42
83 14
1905
4
3 54E
49 48
•4849 1.3130
do.
8
Sm.
Do.
22 47
84 40
1905
4
3 40E
52 38
.5007 .3039
do.
8
Sm.
Key West
24 32
81 49
1903
4
2 39 E
do.
16
Sm.
Do.
24 30
81 51
1903
4
2 48 E
_. _-
.
Hydrog.
ti6
Do.
24 32
81 50
1904
2
2 48E
_ _ _ _
do.
16
Sm.
Do.
24 31
81 49
1905
4
2 30 E
54 52
.5119
.2946
Bache
16
Sm.
Do.
24 31
81 49
1905
4
2 loE
55 00
.5149
.2954
do.
16
Sm.
Do.
24 31
81 50
1906
I
2 30E
55 15
.5150
. 2936 1
do.
16
Sm.
Do.
24 32
81 50
1906
3
2 31 E
54 52
•5109
. 2940 :
do.
16
Sm.
Do.
24 33
81 50
1906
3
2 35 E
54 59
•5113
. 2934 ;
do.
8
Sm.
At sea
24 32
82 58
1906
3
2 36 E
54 19
.5126
.2990 1
do.
8
Sm.
Do.
24 43
83 27
1906
3
3 38E
55 11
.5142
.2936
do.
8
Mod. sw.
Do.
24 44
85 20
1906
3
4 10 E
54 36
.5118
• 2965
do.
8
Hvy. sw.
Do.
25 16
84 43
1906
3
3 34E
55 38
■5192
.2931
do.
8
Lt. sw.
Do.
26 18
88 52
1906
3
5 ooE
56 02
.5231
.2923
do.
8
Mod. sw.
Do.
26 24
86 52
1906
3
4 41 E
56 35
.5262
.2898
do.
8
Lt. sw.
Do.
26 43
90 16
1906
3
5 32E
56 30
.5254
. 2900
do.
8
Mod. sw.
Do.
26.54
88 12
1906
3
4 49E
56 52
.5289 .2891
do.
8
Sm.
Do.
27 28
92 48
1906
3
56 50
.5272 .2884
do.
8
Lt. sw.
Do. •
27 29
90 15
1906
3
5 42 E
57 27
.5346 .2876
do.
8
Lt. sw.
Do.
27 42
93 41
1906
3
7 02 E
5646
.5327 .2919
do.
8
Lt. sw.
Do.
27 56
91 22
1906
3
6 12 E
57 53
.5347 .2843
do.
8
Hvy. sw.
Do.
28 47
93 25
1906
3
643E
58 20
. 5402 . 2836
do.
8
Hvy. sw.
Galveston
29 20
94 40
1906
3
7 22 E
58 45
.5438 .2821
do.
16
Sm.
Do.
29 21
94 45
1906
3
7 33 E
58 47
• 5416
. 2807
do.
16
Lt. sw.
/
/
/
/
c. g. s.
c. g. s.
At sea
15 35
97 42
1905.7
8 01 E
39 29
•4353
.3360
Explorer
8
Sm.
Do.
16 II
99 22
1907.5
7 49 E
> _ - _
do.
3
Lt. sw.
' Do.
16 51
99 55
1907.5
8 22 E
41 10
.4457
•3355
do.
16
Sm.
Do.
16 56
100 21
1907.5
8 45 E
_ _ _ -
do.
3
Mod. sw.
Do.
17 36
102 24
1907.5
8 44E
-_ _ _
do.
3
Mod. sw.
Do.
17 39
102 30
1907.5
- - _
41 14
•4425
.3328
1 do.
3
Mod. sw.
Do.
18 13
103 49
1907.5
9 28 E
-. _-
do.
3
Mod. sw
tUnless otherwise designated, the ship was sw^ung with both helms on the same points, the number of points being
given by the numeral. When the number of points is less than 8, it means that either the swing was incomplete,
for one reason or another, or that observations were made on the course, a point port, a point starboard, and back
on course.
J The ship was not swung for each helm on the same points, though the number of points was the same.
MAGNETIC OBSERVATIONS AT SEA.
95
Tabi*E II. — Magnetic Observations on the United States Coast and Geodetic Survey vessels, from
January j, 1903, to June jo, igoy — Continued.
PACIFIC OCEAN NORTH OF 150 N.— Continued
Station
Lati-
tude N.
Longi-
tude
W.ofGr.
At sea
Do.
Do.
Near Oahu I.
At sea
Do.
Do.
Do.
Do.
Do.
San Francisco
Do.
Do.
At sea
Do.
Port Orchard
Do.
Seattle
Do.
Do.
Puget Sound
Port Angeles
Port Townsend
Juan de Fuca Strait
Do.
Victoria
Do.
Gulf of Georgia
Do.
Near Union
Hecate Strait
At sea
Kiska Harbor
At sea
Dutch Harbor
Do.
Clarence Strait
At sea
Do.
Do.
Davidson Inlet
At sea
Do.
Sitka
Kodiak Harbor
Gastineau Channel
Seward
Do.
Do.
19 24
20 10
21 II
21 16
22 16
22 58
24 25
24 38
24 46
29 05
37 48
37 45
37 45
45 49
46 ID
47 33
; 47 33
47 36
I 47 37
47 37
47 53
48 08
48 06
48 15
48 18
48 22
48 24
48 52
49 30
49 35
51 03
51 58
51 59
52 04
53 53
53 54
55 06
55 14
55 15
55 43
55 52
55 59
56 23
57 02'
57 46
58 14
60 05
60 05
60 08
Date
05 39
06 40
08 01
58 00
09 26
56 18
12 01
12 07
12 20
58 50
22 22
22 21
22 21
30 55
30 05
22 38
22 38
22 21
22 24
22 23
22 29
23 25
22 45
22 56
22 58
23 24
23 25
22 58
24 31
24 53
28 32
31 47
82 28
32 15
66 32
66 31
31 50
40 22
46 50
51 31
33 38
55 41
45 59 I
35 19 ,
52 26
34 18 I
49 15 :
49 15
49 13 I
1907
1907
1907
1904
1907
1905
1907
1907
1907
1904
1904
1904
1904
1904
1904
1906
1906
1904
1906
1906,
1905
1904
1907
1904
1905
1905
1903
1907
1907
1906,
1907
1907
1904,
1906,
1904,
1904.
1905
1907
1906
1906
1904
1906
1907
1903
1907
L903
1905
1905
1905
Observed
I
Ship
No. of
hcad-
Sea
Decl'n
Incl'n
T Int.
H. Int.
ingst
/
/
c. g. s.
c. g. s.
9 II E
43 45
.4538
•3278
Explorer
8
Mod. sw.
9 42 E
do.
3
Lt. sw.
45 53
.4640
•3230
do.
3
Lt. sw.
10 03 E
39 48
.3890
•2989
Patterson
t8
Sm.
10 53 H
_ _ __
Explorer
3
U. sw.
10 51 E
42 18
.3965
■2933
Patterson .
ti6
Mod. sw.
10 32 E
__ _ _
do.
3
Sm.
n 32 E
49 03
.4792
.3141
Explorer
16
Sm.
II 07 E
. _ _-
do.
3
Lt. sw.
II 50 E
47 23
.4168
.2822
Patterson
ti6
Long sw.
17 25 E
62 13
•5431
•2532
do.
16
Sm.
17 12 E
- - » _
McArthur
16
Sm.
17 50 E
_ _ _ _
Gedney
16
Sm.
22 29 E
67 28
•5637
. 2160
Patterson
16
Mcid.sw.
23 32Ett
67 37
. 5628
•2143
do.
16
Mod.sw.
71 30
•5916
.1877
do.
16
Sm.
23 08 E
71 03
•5905
. 1918
do.
16
Sm.
23 26 E
McArthur
16
Sm.
23 ooE
70 54
•5910
• 1933
Patterson
16
Sm.
23 28 E
70 41
•5914
• 1956
do.
16
Sm.
24 12 E
Gedney
16
Sm.
24 33 E
71 00
•5959
• 1940
Patterson
«i6
Sm.
24 17 E
71 12
•5916
.1907
do.
16
Sm.
22 14 E?
Gedney
16
Sm.
23 II E
_ _ _ _
Patterson
16
Sm.
23 53 E
71 15
•5930
. 1906
do.
16
Sm.
23 23 E
__ --
do.
32
Sm.
24 52 E
71 35
.5940
.1877
do.
16
Sm.
24 45 E
71 36
•5901
.1863
do.
16
Sm.
25 48 E
71 29
•5935
.1885
do.
16
Sm.
25 34 E
72 00
•5895
.1822
do.
16
Mod.sw.
27 01 E
71 19
•5773
•1849
do.
8
Rough
9 26E
McArthur
16
Sm.
26 18 E
71 29
.5810
• 1845
Patterson
8
Mod.sw.
16 26 E
McArthur
16
Sm.
16 46 E
66 40
•5236
.2074
Patterson
16
Sm.
28 31 E
Gedney
16
Sm.
' _- _ _
72 38
•5709
.1704
Patterson
8
24 10 E
70 49
.5620
.1847
do.
16
Lt.sw.
22 38 E
70 23
•5550
.1863
do.
16
Lt.sw.
29 19 E
Gedney
16
Sm.
21 53 E
69 53
.5498
. 1891
Patterson
16
Lt.sw.
72 14
•5677
•1732
do.
8
Rough
30 02 E
do.
32
Sm.
24 12 E
72 04
•5637
•1736
do.
16
Sm.
25 54 E
Gedney
. I
Sm.
27 02 E
_ _ _ -
Patterson
16
Sm.
27 34 E
73 58
•5719
. 1580
do.
16
Sm.
26 45 E
i
74 12
•5700
•• 1552
1 do.
1
16
1
Sm.
ed, the ship was swung with both helms on the same points, the number of points being
the number of points is less than 8, it means that either the swing was incomplete,
hat observations were made on the course, a point port, a point starboard, and back
tUnless otherwise designal
given by the numeral. When
Tor one reason or another, or
on course.
tt Compass observations made only while swinging with port helm.
X Dip and intensity from observations on 3, 6, and 4 points, respectively.
XX Ship swung on 16 points one way and on 32 p>oints the other way.
XABLK III.
SECULAR CHANGE OF THE MAGNETIC DECLINATION IN THE
UNITED STATES 1750-1905.
53819—08 — 7 97
SECULAR CHANGE OF THE MAGNETIC DECLINATION.
Introductory remarks.
The material in the United States for constructing secular change tables of the three magnetic
elements has now reached such proportions that it would not be feasible to establish for each station
a formula (linear, quadratic, or sine) by the method of least squares. In fact, recent experience has
shown that the phenomena of the secular changes in the United States are far more complicated
than hitherto supposed. This became specially evident because of the more frequent reoccupations
of magnetic stations since 1899. Not only was the interval between occupations reduced to five
years or less, but also the number of the "repeat'* stations was greatly increased. Consideration
showed that in the absence of our knowledge of the actual law or formula according to which the
secular variation progresses, it would be more satisfactory and certainly more expeditious to employ
graphical processes.
For each State the observations were collected for all stations at which observations had been
repeated since the year 1840, and in a few cases since 1835. For nearly half the States it was possible
to make such collections for the three magnetic elements; in the remainder, while the declination
results went back to 1850 or 1840 or even earlier, dip and intensity results were frequently not avail-
able much before 1880 or 1870. After the results for the various stations had been collected, they
were plotted for each station and for each element on convenient cross-section paper and on such a
scale that stations within a certain radius of each other would fall near together on the diagram.
This arrangement proved convenient, for it readily enabled the detection of any peculiar feature
which an ordinary smoothing-out process would have eliminated , but which could now be retained.
In a similar way gross errors of observation or discrepancies due to non-exact reoccupation of the
former point of observation could be detected. Sometimes, however, owing to the fact that the
same instruments, which apparently were subject to some error due either to magnetic impurities
in the material of construction or due to imperfect determination of constants, were used over a large
area, it was not so easy to detect the imperfections by mere comparison. Whenever there was occa-
sion to suspect any errors due to this source, the observations were not utilized. This applies
especially to determinations made by organizations for which it was impossible to get at the history
of the instruments or methods used.
When the "repeat" observations had been plotted for each station,, curves were drawn through
them to conform as strictly with the results as possible, and then the values of magnetic elements
(declination, inclination, and horizontal intensity) were scaled off for intervals of five years for the
period covered. Next, differences or corrections to reduce an observation to 1905.0 were obtained for
each fifth year. Then a group was formed embodying the mean result of these corrections for three
or more (sometimes six) stations within a radius of 50 to 100 miles. For the entire region covered by
the magnetic charts there were, on the average, about 65 of these groups spaced more or less uniformly
for each magnetic element. These "group secular change tables" were next plotted on a convenient
scale so as to permit obtaining graphically the secular change reduction to 1905.0 of an observed
magnetic element obtained at any time covered by the "group" curves; a check was obtained by
another computer using the "group" tables direct.
This process was found satisfactory. Over the greater part of the region the reduced values
observed at various times at the same station, even when going back twenty-five, thirty, and at
times forty years, differed from each other by quantities less than the average "station error." When,
however, the "repeat" observations were not made at the same pl)int,or when made by different
organizations or observers and referred to 1905.0, the accord was not always so satisfactory. In
these cases both results have been given in Table I, as already stated.
For no land area of similar size are we in possession of an equally exhaustive discussion of the
perplexing secular changes. These changes are far more complex and far more dependent upon local
99
lOO
MAGNETIC TABLES AND CHARTS FOR 1905.
or regional conditions than was hitherto believed to be the case. While it may be possible to estab-
lish some general laws governing the secular changes over the entire United States, these laws appear
to be much too intricate to be specialized so as to fit observations in any one locality within the error
of observations with good field instruments. It would hardly seem advisable to lay so much stress
upon the accuracy of the determinations of the magnetic elements at any one time unless equal care
is bestowed upon the corrections necessary to reduce the observed values to the common epoch.
The five magnetic observatories of the Coast and Geodetic Survey are too far apart for the satisfactory
determination of secular changes over the entire region, so that the need of frequent and of many
"repeat" stations is immediately apparent. Furthermore, such work must be kept up continu-
ously, as is the case in this country, and not be done intermittently.
Explanatory remarks.
Table III,** on the following pages, contains for each State and Territory one or more columns,
arranged alphabetically, showing the change in the magnetic declination from 1750 or the date of
the earliest available observations to the present time. The figures on any line refer to the ist of
January of the year given in the first column. While each column is based on the average value of
declination observed at the place given in parenthesis, it serves to represent equally well the change
in direction of the compass needle in other parts of the general region to which the column refers.
This table gives approximately the actual change in the magnetic declination, and of course does not
take into account the error of any particular compass.
Whenever the surveyor is called upon to redetermine the boundary line of a tract of land run out
at some previous period with a compass, and can find in the vicinity a well-defined line known to
have been established with the same compass and at about the same time as the survey of the tract
under consideration, he can not do better than determine the amount of the change in the compass
bearing of this well-defined line and use it to obtain the present bearings of the boundary lines to
be reestablished. In this way he will also take into account the error of the compasses used. Only
in the absence of such definite information is the use of Table III recommended for the practical
purposes of land surveying. For convenience in entering the table, the following auxiliary table is
added :
Months and days expressed as a fraction of a year.
Jan. o 0.00
Jan. 18 0.05
Feb. 6 -- o. 10
Feb. 24 0.15
Mar. 14 0.20
Apr. I 0.25
Apr. 20 0.30
May 8 0.35
May 26 0.40
June 13 0.45
July 2 0.50
July 20 0.55
Aug. 7 0.60
Aug. 25 0.65
Sept. 13 0.70
Oct. 1 0.75
Oct. 19 0.80
Nov. 7 0.85
Nov. 25 0.90
Dec. 13 -_ 0.95
The use of the tables can best be explained by a few examples :
(i) What was the change in declination at Augusta, Ga. , between June i , 1825 , and September i ,
1906?
In the table for Georgia the values for 1820 and 1830 are 5° 53' E. and 5° 44' E., showing an
average annual decrease of o'.9 ; hence the value for 1 825 , June i , would be 5*^ 53' — (0.9 X 5.4) = 5® 48'
E. Similarly, the table gives for 1905 the value 2^ 02' E., with an annual decrease of o'.8; hence
the value for 1906, September i, would be 2° 02'— (0.8X 1.7) = 2° 01' E. Therefore the north end
of the needle pointed 3° 47' more to the west September i, 1906, than it did June i, 1825.
(2) The magnetic declination at Allegheny, Pa., was 2° 56' W. in August, 1885. What was it
in January, 1800?
From the table for western Pennsylvania are derived the values 0° 37' W. for January, 1800,
and 4° 12' W. for August, 1885, showing a change of 3° 35' in the interval; hence the declination
at Allegheny for the earlier date was 2^ 56' W. — 3° 35', or 0° 39' E.
« With but slight revisions it is the same as published in App. 4, Rejxjrt of the Coast and Geodetic Survey for
1906, pp. 218-226.
SECULAR CHANGE OF THE MAGNETIC DECLINATION.
lOI
(3) A rectangular piece of land at Santa Barbara, Cal., was surveyed by compass in May, 1832,
and the bearings recorded as follows: N. 20° 15' W., N, 75° 30' E., S. 18° 45' E., and S. 78° 00' W.
What bearings should be used in order to retrace the lines in September, 1906?
From the table for southern California the values 13° 16' E. for 1832 and 15° 16' E. for 1906
show a change of 2^ to the eastward in the interval. The desired bearings are, therefore, N. 22° 15'
W., N. 73° 30' E., S. 20° 45' E., and S. 76° 00' W.
Table III. — Secular Change of the Magnetic Declination in the United States,
Arizona.
Arizona.
California.
California.
Year (Jan. i)
Alabama
east
west
south
middle
(Montgomery)
(Holbiook)
(Prcscott)
' (Little Rock)
(Los Angeles)
(San Jose)
32».4 N: se^.a w
34" 9 N, iio'.aW
34°.6N; XIa^5W
34^7N-.9a".3W
34**.iN;ii8<'.aW
37'.3N:iai°.9W
/
/
/
/
/
/
1750
2 52 E
1760 ;
3 28
1770
4 03
1780 !
4 34
10 24 E
13 37 E
1790
5 02
10 58
14 03
1800 ,
5 24
8 13E
II 32
14 32
i8io (
5 39
8 36
\2 07
15 01
1820
5 47
8 51
12 39
15 30
1830
5 46
9 00
13 09
15 57
1840
5 38
8 59
13 36*
16 22
1850
5 22
13 33 E
13 19 H
8 51
13 57
16 45
i860
5 00
13 44
13 33
834
14 13
17 05
1870
4 32
13 47
13 40
8 14
14 24
17 20
1880
3 54
13 40
13 36
7 38
14 33
17 28
1890
3 15
13 25
13 32
7 01
14 36
17 32
1900
2 49
13 29^
13 44^
6 38
14 52^
17 51
1905 1
2 48 E
13 41 B
14 ooE
644E
15 10 E
18 10 E
Annual change in 1905
I'.o incr.
3'. incr.
3'. 2 incr.
2'. incr.
3'. 6 incr.
3'. 8 incr.
Year (Jan. i)
California, Colorado,
north east
(Redding) (Pueblo)
4o*.6 N; xaa«.4 W I 38°.a N. io4*.6W
Colorado, west
(Glenwood
Springs)
39°S N: io7*.3 W
Connecticut
(Hartford)
4i*.7N; 72*'.7W
1750
1760
1770
1780
1790
1800
1810
1820
1830
1840
1850
i860
1870
1880
1890
1900
1905
Annual change in 1905
14 07 E
14 35
15 04
15 34
16 04
16 33
17 01
17 26
17 47
18 06
18 15
18 20
18 39
18 58 E
3'. h incr.
13 47 E
13 50
13 46
13 31
13 00
12 53
13 04 E
2\ 5 incr.
16 07 E
16 15
16 16
16 04
15 40
15 39
15 52 E
2'. 8 incr.
o /
5 47 W
5 18
4 57
4 45
4 43
51
08
34
07
47
7 31
8 09
8 43
9 24
9 51
10 25
10 41 W
3'. 2 incr,
Delaware
(Dover)
9'*.aN;75 .J
75^S w
District of Co-
lumbia
(Washington)
380.9N; yy^.oW
3 23 W
2 46
2 16
I 52
I 37
I 33
I 37
1 52
2 16
2 46
3 23
4 03
41
20
54
26
42 W
3'. 2 incr.
I 41 w
I 02
o 28
o 01 W
o 19 E
o 28
o 28
o 19 E
o 01 W
28
1 02
1 41
2 21
3 00
3 36
4 "
427 W
3'. 2 incr.
I02 MAGNETIC TABLES AND CHARTS FOR 1905.
Table III. — Secular Change of the Magnetic Declination in the United States — Continued.
1
Year (Jan. i)
I Florida, east
1 (Jacksonville)
)| 30*».3 N; 810.6 W
-,i
I
Florida, west
(Pensacola)
30°.4 N; 87°.a W
Florida, south 1 Georsia
(Tampa) (Macon)
as**.© N; 82°.5 W l3a°.8N: 830.6 W
-I .
1750
1760
1770
1780
1790
1800
1810
1820
1830
1840
1850
i860
1870
1880
1890
1900
1905
Annual change in 1905
27
04
40
12
37
55
04
04
55
37
12
40
04
25
50
I 19
I 13 E
o'. 8 deer.
ooE
37
13
44
II
32
45
50
45
31
12
45
13
34
57
4 29
4 25 E
00 E
30
55
15
26
6 30
6 26
6 15
5 55
5 30
00
28
53
16
48
19
II E
16 E
53
29
01
26
5 44
5 53
5 53
5 44
5 26
01
29
53
14
39
08
02 ;
Idaho, east Idaho, west
(Pocatello) (Boise)
4a"'.9N;ii2°.4W43^6N:ii6o.2W
I .
17 21 E
17 40
17 51
17 54
17 43
17 51
18 07 E
i'. 6 deer. , o'. 8 deer. . 3'. 2 iner.
17 59 E
18 21
18 36
18 43
18 39
18 51
19 08 E
3'. 4 incr.
Kentucky.
Year (Jan. i)
Illinois
Indiana
Iowa
Kansas, east
Kansas, west
east
(Bloomington)
(Des Moines)
(Emporia)
(Ness City)
(Lexington)
400.S N. 89°.o W
39°.8 N: 860.2 W
41^.6 N; 93°.6 W
/
38o.4N;93°.2W
38°.5N;99^9W
38'».iN;84''.5W
/
/
/
/
/
1750
1760
1770
1780
1790
1800
5 54E
4 44E
4 22 E
1810
6 18 -
4 59
4 31
1820
6 33
5 04
10 09 E
4 31
1830
637
4 59
10 24
4 22
1840
633
4 44
10 30
4 04
1850
6 18
4 21
10 24
II 34 E
12 24 E
3 39
i860
5 54
3 50 •
10 09
11 28
12 23
3 07
1870
5 26
3 13
9 44
II 12
12 12
2 31
1880
4 44
2 35
9 06
10^45
II 54
I 53
1890
4 05
I 57
8 21
10 07
II 21
I 15
1900
1 336^
' ^^^
7 54^
9 50
II 08
41
1905
3 31 E
I 15 E
7 57E
9 59E
II 16 E
32 E
Annual change in 1905
i'. deer.
1
i'. 5 deer.
i'. 5 iner.
2'. iner.
2'. iner.
I'.odecr.
SECULAR CHANGE OF THE MAGNETIC DECLINATION. 103
Table III. — Secular Change of the Magnetic Declination in the United States — Continued.
Year (Jan. i)
1750
1760
1770
1780
1790
x8oo
1810
1820
1830
1840
1850
i860
1870
1880
1890
1900
Annual change in 1 905
Kentucky,
west
(Princeton)
37°.! N: 87*>.9W
6 32 E
6 50
6 59
6 59
6 50
6 32
6 07
5 37
4 57
4 20
3 51
3 44 E
<y.o
Louisiana
(Alexandria)
3i*».3 N; 9a*.4W
Maine.
northeast
(Bastport)
44°.9N;67°.oW
8 04 E
8 25
8 41
8 49
8 48
8 40
8 24
8 02
7 26
653
12 05 W
" 53
" 53
12 05
12 26
12 58
13 38
14 23
15 12
16 02
16 58
17 43
18 13
18 34
18 44
6 33 I 19 02
6 40 E 19 14 W
2'.o incr.
2'. 4 incr.
Maine,
southwcat
(Portland)
43*.6N;70«.3W
8 34 W
8 15
10
10
Maryland
(Baltimore)
39^3 N: 76^6 W
8
I '5
34
9 02
9 38
10 18
10 57
11 38
12 18
12 48
13 22
13 51
14 21
14 36 W
3'. o incr.
/
3 05 W
2 26
1 52
I 25
I 05
o 56
56
1 05
I 25
1 52
2 26
3 05
3 45
4 24
5 00
5 35
5 51 W
3'. 2 incr.
Massachusetts,
east
(Boston)
4a''.3N; 7i°.oW
46 W
19
00
50
50
7 01
. 7 20
7 47
8 22
9 04
9 48
xo 28
II 01
11 32
12 02
12 34
12 51 W
3'. 4 incr.
Year (Jan. 1)
Massachusetts,
west
i (Pittsfield)
, 4a'.4 N: 73^3 W
Michigan,
north
(Marquette)
46«.s N: 87».4 W
Michigan,
south
42^.7 N: 84^.5 W
Minnesota.
north
(Northome)
47«.9N:94°.3W
Minnesota,
south
(Mankato)
44».aN:94^oW
Mississippi
(Jackson)
32*».3N:90°.2W
© f
/
/
f
/
/
1750
1760
1770
1780
1790
6 21 W
5 52
5 31
5 19
5 17
1800
1810
1820
1830
1840
5 25
5 42
6 08
641
7 21
6 42 E
642
6 28
4 10 E
4 04
3 46
10 27 E
10 44
10 50
II 20 E
II 36
II 42
7 54 H
I '^
8 24
8 28
8 24
1850
i860
1870
1880
1890
8 05
8 43
9 17
1 9 58
; 10 25
6 02
5 25
438
3 47
2 58
3 20
2 46
2 04
I 17
32 E
10 44
10 27
9 59
9 17
8 33
II 36
II 20
10 54
10 22
9 32
8 13
7 57
6 55
6 21
1900
1905
10 59
11 15 w
2 20
2 08 E
02 W
14 W
7 58
7 58 E
I'.o incr.
9 01
9 02 E
5 58
6 02 E
Annual change in 1 905
3'. 2 incr.
i
I'. 5 deer.
2'.o incr.
I'.o incr.
i'.5 incr.
I04 MAGNETIC TABLES AND CHARTS FOR 1905.
Table III. — Secular Change of the Magnetic Declination in the United States — Continued.
_
Nebraska.
Nebraska.
Year (Jan. i)
Missouri
Montana, east
Montana, west
east
west
Nevada, east
(Sedalia)
(Forsyth)
(Helena)
(Hastings)
(Alliance)
(Elko)
38^7N:93°.aW
46».2N; io6«.6W
46°.6N:ii2«.oW
40°.6N;98''.4W
42''.iN- io2°.8W
4o^8N;iis°.8W
/
/
/
/
/
/
1750
1760
1770
1780
1790
1800
1810
1820
10 03 E
II 39 E
1830
. 10 13
II 57
1840
10 13
18 09 E
18 53 E
12 07
1850
10 04
18 27
19 18
12 07
15 27 E
17 20 E
i860
9 46
18 36
19 36
II 59
15 27
17 36
1870
9 24
18 36
19 45
II 41
15 18
17 41
1880
8 44
18 21
19 34
II 10
14 50
17 44
1890
8 02
17 53
19 23
10 31
14 20
17 38
1900
7 38
17 50
19 31
10 14
14 10
17 49
1905
7 43 E
18 04 E
19 47 E
10 22 E
14 18 E
18 04 E
Annual change in 1905
2'.o incr.
2'. 8 incr.
3'. 2 incr.
2'.o incr.
2'. 5 incr.
3'. incr.
New Mexico,
New Mexico.
Year (Jan. i)
Nevada, west
New Hampshire
New Jersey
east
west
New York, east
(Hawthorne)
(Hanover)
(Trenton)
(Santa Rosa)
(Lasuna)
(Albany)
38*.5N:ii8°.6W
43^7 N: 73».3 W
40«.a N; 74'*.8 W
34^9N; io4».7W
3S''.iN:io7*.4W
42<'.7N:73°.8W
/
/
/
/
/
/
1750
8 02 W
4 43 W
7 35 W
1760
7 28
4 04
653
1770
7 03
3 31
6 17
1780
647
3 06
5 50
1790
642
2 50
5 34
1800
649
2 45
5 28
1810
7 06
2 50
5 34 .
1820
7 32
3 06
5 50
1830
8 II
3 31
6 17
1840
8 56
4 04
653
1850
16 16 E
9 46
4 43
12 43 E
13 26 E
7 39
• i860
16 37
10 31
5 22
12 47
13 33
8 25
1870
16 52
II 08
6 01
12 43
13 34
9 04
1880
17 00
II 38
6 41
12 29
13 22
9 51
1890
17 02
12 03
7 14
12 03
13 02
10 14
1900
17 17
12 31
7 49
II 59
13 02
10 48
1905
17 33 E
12 46 W
8 06 W
12 II E
13 14 E
II 06 W
Annual change in 1905
3'. 2 incr.
3'. incr.
3'. 2 incr.
2'. 8 incr.
2'. 8 \ncr.
1
3'. 5 incr.
SECULAR CHANGE OF THE MAGNETIC DECLINATION. 105
Table ill. — SectUar Change of the Magnetic Declination in the United States — Continued.
Year (Jan. 1)
1
, New York, west
(Elmiia)
' 4a°.i N; 76^8W
North Carolina.
east (Newbem)
3S*.i N: 77°.oW
«
l^orth Caiolina.
west (Salisbury)
35*. 7 N; 8o«>.s W
North Dakota.
east
(Jamestown)
46°.9N: 98».7 W
North Dakota,
west
(Dickinson)
46°.9N:ioa<'.7W
Ohio
(Columbus)
40«'.oN; 83°.oW
! 0,
/
/
/
/
/
1750
1760
1770
1780
1790
440 w
3 57
3 '8
2 46
j 2 24
18 W
18 E
50
1 17
I 35
1 31 E
2 08
2 42
3 12
3 34
1800
1810
1820
1830
1840
2 13
2 13
2 24
2 46
1 3'«
I 44
I 44
1 35
I 16
50
3 48
3 52
348
3 33
3 10
3 13 E
3 22
3 22
3 13
2 53
1850
i860
1870
1880
1890
3 57
4 46
5 23
6 16
6 57
17 E
19 W
58
1 35
2 14
2 40
2 06
I 29
^i
13 E
14 31 E
14 21
14 02
13 31
12 43
17 37 E
17 37
17 27
17 00
16 21
2 24
I 50
37 E
02 W
1900
1905
?^U
2 51
3 06 W
23 W
033 w
12 24
12 35 E
16 10
16 23* E
42
054 w
Annual change in 1905
2'. 5 incr.
3'. incr.
2'.o incr.
2'. 2 incr.
2'. 6 incr.
2'. incr.
1
Year (Jan. 1)
Oklahoma
(Okmulgee)
3S°.6 N. 95°.6W
Oklahoma
(Enid)
360.4N: 97^9 W
Oregon east,
(Sumpter)
44**.7N; 1180.2W
Oregon, west
(Detroit)
44°.7N; i3a°.iW
Pennsylvania,
east
(Philadelphia)
4o«.oN; 7S°-2W
Pennsylvania.
west
(Altoona)
40^SN;78°.4W
/
/
/
/
/
f
1750
1760
1770
1780
1790
4 47 W
4 01
3 19
2 44
2 21
I 16 w
52
1800
1810
1820
1830
1840
16 05 E
16 43
17 22
18 01
18 38
2 08
2 09
2 22
2 47
3 21
37
31
37
52
1 16
1850
i860
1870
1880
1890
10 15 E
10 06
9 51
9 24
8 45
II 13 E
II 08
10 56
10 33
9 54
19 15 E
19 40
19 58
20 09
20 II
19 12
19 41
20 06
20 24
20 32
4 04
4 46
5 32
6 16
6 50
1 48
2 26
3 06
3 50
4 28
1900
1905
8 31
! '8 43 E
9 40
9 52 E
20 26
20 44 E
20 50
21 09 E
7 25
7 42 W
5 07
5 21 W
Annual change in 1905
2'. 4 incr.
•
2'. 4 incr.
3'. 6 incr.
3'. 8 incr.
3'. 4 incr.
2'. 5 incr.
I06 MAGNETIC TABLES AND CHARTS FOR 1905.
Table III. — Secular Change of the Magnetic Declination in the United States-^Continued.
South Dakota,
Tennessee,
Tennessee
Year Oa^ i)
Rhode Island
South Carolina
South Dakota,
west
east
west
(Newport)
(Columbia)
east (Huron)
(Rapid City)
(Chattanooga)
(Huntingdon)
, 4i^SN; 7i°-3W
33°.9N; 8i°.oW
44°.4 N. 98". 2 W
44°.xN; io3°.aW
3S*'.oN;8s°.3W
36«.oN;88'>.4\^'
1 ° '
/
/
/
/
/
1750
7 04 w
2 04 E
1760
1 637
2 41
1770
1 6 18
3 15
1780
j 6 08
3 44
1790
' 6 08
406
1800
6 19
4 19
•
5 07 E
1810
6 38
4 24
5 16
1820
: 7 05
4 19
5 16
7 24 E
1830
1 7 40
406
5 07
7 24
1840
8 22
3 44
13 06 E
4 49
7 16
1850
1 9 06
3 15
13 06
16 26 E
4 24
6 59
i860
9 46
2 41
12 57
16 26
3 52
635
1870
10 19
2 03
12 39
16 16
3 16
e 05
1880
10 50
I 25
12 07
15 50
2 36
5 29
1890
II 20
47
II 25
15 17
2 01
4 53
1900
1 II 52
II
II 07
15 07
I 30
4 24
1905
I 12 09 W
02 E
II 16 E
15 15 E
I 22 E
4 20 E
Annual change in 1905
j 3'. 4 incr.
I'.o deer.
2'. incr.
2'. incr.
i'.o deer.
o'.o
Texas,
Year Qan. 1)
Texas, east
Texas, middle
Texas, west
northwest
Utah
Vermont
(Houston)
(Saa Antonio)
(Pecos)
(Floydada)
(Salt Lake)
(Rutland)
aft^.S N; 98*.sW
3i'.4N; io3*.6W
34*'.oN; 101''. 3W
40».8N. iii«.9W
43*6 N. 73''.oW
/
/
f
/
/
/
1750
7 43 W
1760
7 09
1770
644
1780
6 28
1790
6 23
1800
6 30
1810
647
1820
8 55 E
7 13
1830
9 10
9 37 E
10 46 E
748
1840
9 19
9 48
II 00
8 29
1850
9 19
9 53
II 08
II 16 E
16 25 E
9 13
i860
9 12
9 48
II 07
II 18
16 36
9 59
1870
8 56
9 37
II 00
II II
16 40
10 39
1880
8 29
9 19
10 48
10 56
16 30
II 14
1890
7 56
852
10 24
10 25
16 20
II 39
1900
7 44
8 43
10 18
10 16
16 28
12 08
1905
1 7 53 E
8 55 E
10 30 E
10 28 E
•16 42 E
12 26 W
Annual change in 1905
2'.o incr.
2'. 5 incr.
2'. 8 incr.
2'. 5 incr.
3'.o incr.
3'. 5 incr.
SECULAR CHANGE OF THE MAGNETIC DECLINATION. 107
Table III. — Secular Change of the Magnetic Declination in the United States — Continued.
Year (Jan. i)
Virginia, east
(Richmond) ;
37^.6 N: 77*.SW:
Virginia, west
(Lynchburg)
37°.4N: 79^aW
Washington, cast
(Wilson Creek)
47^4 N: lX9^oW
Washington.
west (Seattle)
47*-7N:i22<'.3W
West Virginia
(Charleston)
38«'.4N:8i0.6W
Wisconsin
(Madison)
43^1 N; 89«.4W
/
f
/
/
f
/
1750
1760
1770
1780
1790
I 13 w
37
05 W
20 E
38
08 E
42
1 II
I 33
17 19 E
17 52
2 00 E
1800
1810
1820
1830
1840
47
47
38
20 E
05 W
I 46
I 46
1 33
I II
18 27
19 04
19 41
20 16
20 49
2 15
2 20
2 15
2 00
I 37
8 34 E
8 40
8 34
1850
i860
1870
1880
1890
36
1 12
1 51
2 29
306
45 ^
10 E
29 W
1 09
I 46
21 16 E
21 37
21 52
21 56
22 06
21 19
21 45
22 06
22 19
22 38
' °5 ^
30 E
12 W
51
1 28
8 16
7 49
7 14
6 25
5 36
1900
1905
3 40
356 w
2 22
2 37 w
22 22
22 38 E
22 58
23 14 E
2 06
2 20 W
5 ^' ^
4 55 E
Annual change in 1905
3'.o incr.
2'. 8 incr.
3'. 2 incr.
3'. 2 incr.
2'. 6 incr.
o'.o
Year Qan. i)
Wyomins. east
(Douglas)
4a*.7N; io5*'.4W
Wyoming, west
4i'».5N. I09*'.SW
•
/
/.
1750
1760
1770
1780
1790
1800
1810
1820
1830
1840
♦
1850
i860
1870
1880
1890
15 51 E
15 59
15 59
15 47
15 24
1645 H
16 58
17 02
16 54
16 36
1900
1905
15 19
15 27 E
16 37
16 48 E
Annual change in 1905
2'. 4 incr.
2'. 8 incr.
Lines of equal annual change in magnetic declination for 190^,
[Blue curves, chart i.]
These lines (the blue ones on the chart of the "Lines of Equal Magnetic Declination") give in
minutes the amount of change in the magnetic declination per annum. It will be seen that this
amount varies over the entire country, from nothing to 4', so that the amount of annual motion of the
lines of equal magnetic declination varies from nothing to about ^ of the distance between any
two of them. It will be noticed that the annual change lines differ considerably from those of 1902
owing to the great increase of data within recent years and because of peculiar changes amoimting
even to reversals of direction encountered in certain parts of the country, which could not be antidi
pated with the data available in 1902.
The note on the chart states that "The north end of the compass is moving to the westward for
places east of the line of no change, and to the eastward for places west of the said line, at an annual
I08 MAGNETIC TABLES AND CHARTS FOR 1905.
rate indicated by the lines of equal anntuU change (blue lines). In other words, east of the line of no
change the isogonic lines are moving westward, whereas to the west of the line of no change they
are moving eastward.*'
Accordingly three regions must be distinguished :
(a) In the region of the United States east of the agonic line or line of no magnetic declination,
virhere west declination prevails throughout, there the declination is increasing from about 2' to 4' per
annum. It will be seen that the amount increases with distance from the agonic line until. the New
England States are reached, where the maximum change occurs; thence, with further progression
northeastward, the annual change begins to decrease until a region is reached, which can not be shown
on the map, where there is no change, viz, where west declination has reached a maximum value
and is, in consequence, nearly stationary at present.
(b) In the region between the agonic line and the line of no annual change, which runs practically
parallel to the agonic line, the magnetic declination (east) is decreasing at the rate of o' to 2' per
annum.
(c) In the region west of the line of no annual change, where the magnetic declination is east
throughout, it is increasing at the rate of o' to 4' per annum.
In accordance with a steady progression of the secular variation waves westward, it was
thought that when easterly declination had ceased to increase and remained stationary for some
time — ^as actually was the case, along the California coast between 1880 and 1890 — it would then
begin to diminish. On the contrary, however, after remaining nearly stationary for a while, it
began to increase very rapidly, so that at present the annual increase is 3J' to 4'. In other
words, the maximum of 1880 to 1890 was apparently not a principal one, but a secondary one.
This extremely interesting though troublesome reversal of the secular change has moved to the
eastward, and so rapidly that in twenty years it had already crossed the Mississippi River, and it
appears to be still progressing eastward. It was due chiefly to this feature of the secular change
that a new reduction of the previously utilized data became necessary.
On the other hand, there is also no question but that the phase of maximum west declination,
which, as intimated above, has already occurred in Labrador and Newfoundland, is steadily moving
southwestward. Hence there is occurring in the United States at present a most interesting conflict
of secular waves, which will necessitate keeping a close watch on the changes for some time to come.
The effect of these complicated changes, as pointed out in the note cited above, is to move the
isogonic lines which lie east of the lipe of no annual change, westward, and those west of the no-
annual-change line, eastward, or in other words, the lines are being crowded together from both sides
of the line of no change.
TABLE IV.
SECULAR CHANGES FOR THE UNITED STATES IN THE THREE
MAGNETIC ELEMENTS, DECLINATION (D), INCLINATION (I),
AND HORIZONTAL INTENSITY (H), FROM 1840 TO 1905.
109
SECULAR CHANGES IN THE MAGNETIC ELEMENTS.
Secular motion curves,
[Red curves, chart 7.]
The most suitable method for showing the chief and characteristic features of the secular changes
in the magnetic declination and inclination for the United States appears to be by means of the
so-called ** secular motion curves." These curves are the paths described in space by the north end
of a freely suspended magnetic needle, t. €., one so mounted as to turn freely in every direction,
and hence setting itself at any time tangent to the actual direction of the lines of magnetic force,
thus showing, as the curve progresses, not only the changes in the magnetic declination, but also
those in the inclination as well. The observer is supposed to be standing at the point of suspension
of the needle and looking toward the north end. As the curve described is a tortuous one, lying lOn
a sphere of radius equal to half the length of the needle, the curve actually drawn is the gnomonic, or
central projection of the curve in space upon a plane tangent to the sphere at about the middle
point of the curve.
This method of representation was employed by the writer in studying the phenomena of the
secular variation over the entire globe; for information as to formulae, etc., it must suflSce here to
merely make reference to the publication in question.** One of the interesting results of this investi-
gation was that "the direction in which the secular motion curves were described at the stations for
which reliable data existed for a sufficiently long period (one hundred to three hundred years)
appeared to be clockwise for the entire globe." It was pointed out, however (pp. 50 and 51 of the
publication cited), that this apparently universal law may not always hold, but that for more or
less limited periods the motion may be reversed and the needle proceed in the opposite direction
from what it did immediately before. In fact, even then (1895) it was possible to announce that there
were evidences of reversed or indefinite motions on the Pacific coasts on account of the conflict of
the secular variation waves in the Pacific Ocean, caused by the fact that certain phases of the secular
variation were traveling eastward, thereby coming into collision with those going westward, the latter
being those of the larger or more pronounced features.
It was also shown that a consideration of the declination observations of the fifteenth and
sixteenth centuries indicated that the law of secular variation at that time was somewhat different
from that followed subsequently. These facts gave some indication that we should not expect the
secular motion curve for any one station to be closed (if it ever is) in any simple manner, but that
more likely it will consist of a number of loops, or even of retrogressions. It is only by such a sup-
position that the observed facts can be explained and the possibility of a secular variation period,
the same for the entire globe, be entertained.
Figure i (p. 1 1 2) contains the secular motion curves for three typical stations, London, Boston, and
Baltimore, drawn to scale, supposing half length of suspended needle to be about 50 centimeters
(19.5 inches).
The secular motion curves receive added interest from the further physical fact that they serve
to give some idea, at least, of the kind of motion to which the Earth's magnetic poles themselves may
be subject. The observer may imagine himself transported to the center of the Earth and observe,
say, the motion of the north end of a magnetic needle ever coincident with the Earth's magnetic
axis, or with the North Magnetic Pole, and thus get a curve on the Earth's surface similar to those
here considered.
In view of the remarkable secular changes observed in the United States during the past decade,
it seemed especially profitable to investigate the secular motion curves for a period of about twenty-
five to fifty years — as far as the records of thoroughly reliable observations permitted — and to
o L. A. Bauer: Beitrage zur Kenntniss des VVesens der Sacular Variation des Erdmagnetismus. Inaug. Diss. Un.
of Berlin, Mayer and MtiUer, Berlin, 1895. (An English abstract entitled "On the secular motion of a free magnetic
needle," was published in the Physical Review, Ithaca, N. Y., vol. 2, pp. 456-465, and vol. 3, pp. 34-48.)
112
MAGNETIC TABLES AND CHARTS FOR 1905.
draw them on a sufficiently large scale to exhibit all of the peculiarities. This necessitated
restricting the curves to a period of about half century. The writer in his original publication
drew the secular motion curves true to scale, supposing the half length of the freely suspended needle
to be 20 centimeters (7.9 inches), and in the diagram above (fig. i), showing the curves for London,
Boston, and Baltimore, the half length of needle was about 50 centimeters (19.5 inches). On plate 7,
however, the curves are drawn for half length of needle of about 355 centimeters (11.6 feet), hence
eighteen times the original scale, or seven times that used in fig. i. It must therefore be borne in
mind that, on the original scale employed, many of the features shown on the present scale would
either not be noticeable at all or appear as knot^, small loops, or minor retrogressions. This fact
should be considered when referring to the general secular motion prevailing for a century or more.
All that may be said at present is: No stations have been found thus far for which reliable observations
.0 i2"iolC6i_^2r o
T^ w
Pig. I. Curves showing secular change in magnetic and inclination at London, Boston, and Baltimore.
are available, where the reverse or anticlockwise motion has prevailed for any such length of time as has
been found the case with the direct or clockwise motion.
For convenience in constructing the general secular motion curves in place on the base map of
the United States (scale T[fTj7jV:TrTTr» polyconic projection), 1° change in the inclination of the magnetic
needle was taken equal to 4° of latitude or 62 millimeters, this corresponding to a half length of
needle, as already stated, of 355 centimeters. One degree change in the magnetic declination on
the projection would be found by multiplying the adopted scale for the inclination changes by the
cosine of the average inclination. It was furthermore found convenient to arbitrarily select the
values of the magnetic declination and inclination for 1880 as approximately representing the mean
values for the interval here considered. The method of construction employed, while not strictly
conforming to the principles of gnomonic projection, will suffice for the present purposes. Points
of the curves were plotted for every five years, as shown by the dots, and the latter were then connected by
continuous lines. The geographic position of the station to which the curve applies is indicated by a
small circle near the 1880 point of the curve. Increasing inclinations are shown by a downward motion
of the curve and a change in the declination to the east by a motion of the curve toward the right edge
of the chart, i. e., toward the geographic east.
Table IV, *' Secular changes for the United States in the three magnetic elements, declination
(D), inclination (I), and horizontal intensity (H) from 1840 to 1905," contains the data used
SECULAR CHANGES IN THE MAGNETIC ELEMENTS. 113
in the construction of the curves. This table was drawn up with the aid of the secular variation
groups employed in the reduction of the magnetic elements to 1905. The values for 1905 were
taken from Table V, giving the magnetic elements for each degree of latitude and longitude,
and the secular changes as determined from the said groups were applied to them. The secular
change data for any one station or curve depend, therefore, upon the results at all the repeat stations
in the immediate region. Only so many of the curves are reproduced as are requisite for pursuing
successfully the motion and phases from station to station across the country, so as to give oppor-
tunity for likewise showing the secular changes in the horizontal intensity, as later described.
An inspection of the secular motion curves exhibits better than any words can describe the
exceedingly complicated nature of the secular changes developed in this country during the past
quarter of a century. It will be noticed that we have cases of both the direct and the reverse
motions. The latter have had their greatest development, during the past twenty-five years, in the
Southern Central and Eastern States, the retrogressive movement becoming less and less as we
progress to the north and northeastward, and disappearing entirely in eastern British North America.
There are reasons for believing that some of the marked and abrupt changes noted in the United
States in recent years have likewise made themselves felt, in a more or less pronounced manner,
in other regions of the globe.
As far as the analysis of the disturbing systems causing the secular changes has progressed,
there is distinct evidence that there are two main systems involved — one an internal system and the
other an external one (outside of the Earth's surface) .<» It so happens that at present these two
main systems are in such phase with reference to each other that in certain parts of the United States
the effect of the outside system predominates over that of the inside system, with the result that
the steady westwardly progression of the salient features of the curves is either being retarded or
actually is reversed. Thus, as already pointed out elsewhere, while one phase of east declination
is at present rapidly progressing eastwardly (or northeastwardly) across the country, the phase of maximum
west declination is progressing more leisurely in a west and southwest direction, having already occurred
in Labrador and Newfoundland,
So likewise with the inclination. In 1880 the line of no annual change skirted along the boundary
of the United States and Mexico, with the result that at that time over the entire United States
the inclination was decreasing, whereas in Mexico it was increasing. In the short space of twenty-five
years — in 1905 — this line of no annual change of inclination had moved north and northeastward
almost to the extreme limit of the northern boundary of the United States, so that at present the
inclination is increasing over the United States with the exception of the New England States and
a strip along the Pacific coast, where it is decreasing. The maximum annual change of about + 4',
in the inclination, is occurring at present in the Gulf of Mexico and Florida.
Precisely the same rapid shift was shown by the line of no change of the horizontal intensity^
this line falling, in general, very near to the line of no change of inclination. The changes,
however, are reversed, i. e., in general, where the inclination is increasing the horizontal intensity is
decreasing, and vice versa. Thus in 1880 the horizontal intensity was increasing practically
everywhere in the United States, whereas now it is decreasing except in the New England States
and in the northwest part of the State of Washington, where it is increasing. The maximum
absolute amount of annual change in the horizontal intensity (—0.0007 C. G. S. unit) is taking place
at present in the Gulf of Mexico, Florida, and Cuba.
These comparatively rapid changes seem to prove conclusively that the secular variation cyde
is a very complicated one, consisting of periods and subperiods. A preliminary analysis of the
magnetic field of the United States has shown that the magnetic forces observed at any given point
in the United States are the resultant effects of (i) a general or terrestrial magnetic field due to the
general magnetic condition of the Earth, (2) a general, terrestrial disturbing cause which distorts
the general magnetic condition of the Earth at the place of observation, (3) a continental disturbing
effect, due largely to that portion of the North American continent above the general ocean bed,
(4) a regional disturbance due to low-lying magnetized masses or earth currents covering a certain
region, and (5) a local disturbance due to the magnetized masses or currents in the immediate vicinity.
''See the writer's article: System of magnetic forces causing the secular variation of the uniform portion of the
Earth's magnetism, Journal Terrestrial Magnetism and Atmospheric Electricity, vol. 9, 1904, pp. 173-186.
53819
114
MAGNETIC TABLES AND CHARTS FOR 1905.
In a like manner the secular variation observed at any one place seems to be the resultant effect
of terrestrial, continental, regional, and local disturbing systems. There appears to be sufiSdent
evidence that in areas of local disturbances the secular variation suffers modifications over what
it would be in that locality did the cause for the local disturbances not exist.
Along the Atlantic coast, in British North America, the secular motion curves, as far as they
can be drawn, exhibit the direct motion, the westerly turning point or phase of maximum west
declination having already been passed. In western British North America, south of the parallel
52®, the secular changes in inclination and horizontal intensity during the past half century were,
in general, small. The investigation of the secular changes of the countries outside of the United
States is receiving the special attention of the Department of Terrestrial Magnetism of the Carnegie
Institution of Washington.
Horizontal intensity secular variation curves.
[Blue curves, chart 7.]
There appears to be no good method of exhibiting satisfactorily the time changes in the magnetic
force in connection with the declination and inclination changes. (The method of vector diagrams
more properly belongs to the mathematical analysis of the forces.) The horizontal intensity changes
might be shown by varying the width of the secular motion curve or by perpendiculars drawn to
the latter curve proportionate to the intensity changes. It would seem better, however, to treat
these changes entirely separately and construct special diagrams.
For convenience, the polyconic projection already on the base map (chart 7) was utilized as
the coordinates. The intensity ordinateswere laid off on the meridians, i® latitude (15.5 millimeters)
equal to 0.0100 C. G. S. unit, and the time abscissae on the parallels, 1° longitude equal to ten years.
Increasing horizontal intensity is shown by an upward motion of the curve. Points on the curve (dots)
were plotted at intervals of five years with the aid of the data in Table IV and the dots were then joined by a
continuous line. The 1880 point for each curve falls in the geographic position to which it refers. The
curves are so distributed as to enable one readily to follow the progression of the characteristic
features of the intensity changes over the United States.
A comparison of the secular motion curves and the horizontal intensity curves shows at once that, in
general, the horizontal intensity increases where the inclination decreases, and vice versa ^ as already jwinted
out. Theory shows that this should , in the main, be the case. For example, if, as the result of the
secular variation, the magnetic pole is moving toward a particular station on the globe, the inclina-
tion at this station will necessarily increase while the horizontal intensity decreases.
Table IV. — Secular
changes for the United States in the three magnetic
elements t
declination
iD),
inclination (/), and horizontal intensity
(//), from 1840
N. 57°.S w
to 1905.
47°
N; 56«.SW 54°
49"'
N: 92' w
Year (Jan. i)
1
1
D
I '. ■ H 1 D
I
H
D
I
H
/
/
c. g. s.
/
/
c. g. s.
/
•
<* ' c.
g. s.
1840
78 30
1333
1845
78 28
1333
1850
27 52 w
78 28
1333
1855
28 09
78 26
1332
i860
28 22
9 28 E
78 25
1330
1865
28 32
9 05
78 24
1328
1870
' 28 30
.1465
. 1 108
8 41
78 22
1324
1875
1 28 22
1487
.1131
8 16
78 20
1321
1880
28 09
75 02
1506
38 56 W 1 78 39
• 1 149
7 50
78 20
1319
1885
27 53
74 46
1520
38 28 , 78 29
.1166
7 28
78 15
1318
1890
27 38
74 32
1533
37 54 1 78 19
. 1 184
706
78 12
1318
1895 I
27 "5
74 19
1545
37 26 78 07
. 1 198
6 49
78 II
1321
1900 1
27 16
74 II
1555
37 00 1 77 58
. 1211
6 39
78 09
1324
1905
27 12 W
74 08
. 1561
36 38 w
-4'. 5
77 51
. 1218
6 36 E
o'.o
78 06
1330
Annual change in 1905 «
-I'. 2
-o'.6
+ 1.2
-I'- 5
+ 1.5
-o'.5
+1.0
a A plus sign invariably means a numerical increase of the magnetic element for 1905 and a minus sign denotes
a numerical decrease. The horizontal intensity changes are given in units of the fourth decimal C. G. S. units.
SECULAR CHANGES IN THE MAGNETIC ELEMENTS.
"5
Table IV. — Secular changes for the United States in the three magnetic elements , declination (D)^
inclination (/), and horizontal intensity (//), from 1840 to 1905 — Continued.
Year (Jan. i)
49° N; too° W
H
1840
1845
1850
1855
i860
1865
1870
1875
1880
1885
1890
X895
1900
1905
D
^
/
/
c.
15 46 E
' 15 33
15 21
; 15 14
1 15 II
! 15 18 E
76 54
76 52
76 49
76 48
76 47
7648
1469
1467
1465
1463
1462
1460
49" N. IIO<» W
20 52
20 49
20 48
20 48
20 51
20 57
21 06
Annual change in 1 905 « + 2 ' . 3
+0'. 3 ; — o. 2 I 4-3'-
74 38
74 32
74 28
74 28
74 28
74 30
c. g. s.
.1665
.1662
.1657
.1654
. 1652
. 1650
+o'.4
-05
49° N: i2o» W
D
I
H
/
/
c. g. s.
.1839
.1841
22 36 E
72
26
.1841
22 48
72
24
. 1840
22 59
72
22
.1839
23 08
72
22
.1836
23 15
72
19
. 1831
23 26
72
20
. 1826
23 39
72
19
. 1821
23 49
72
19
. 1819
24 00
72
19
. 1820
24 12 E
72
18
. 1820
+3'. 6
-o'.5
+0.8
45* N: 6s° W
Year (Jan. i)
45° N; 70« W
1840
1845
1850
1855
i860
1865
1870
1875
1880
1885
1890
1895
1900
1905
I c. g. s.
18 21 W
18 46
19 09
19 34
19 52
20 04
20 II
20 13
20 15
20 18
20 24
20 34
20 48 W
75 58
75 57
75 56
75 50
75 41
75 32
75 20
75 08 I
74 57 '
74 46 I
74 35 :
74 28 ;
74 24
1492
1496 I
1504
1514
1525 I
1537 I
1553
1567 '
1578 !
1589 I
1600 '
1608 I
I6IO
13 17 w
13 44
14 08
14 3^
14 47
15 01
15 16
15 30
15 39
15 49
16 01
16 12
16 24 W
76 16
76 16
76 13
76 06
75 58
75 50
75 40
75 30
75 21
75 II
75 00
74 53
74 48
c. g. s.
1464
1470
1477
i486
1495
1505
1516
1527
1538
1547
1557
1566
1570
45** N; 75° W
7 46 w
8 22
8 55
9 24
9 47
10 06
10 26
10 46
10 58
11 12
II 27
11 42
12 00 W
Annual change in 1905 « . +2'. 2
-o'.7
0.0
-f2'.8
-I'.O
+0.5 , 4-3'. 5
76 46
76 45
76 43
76 39
76 35
76 30
76 25
76 13
76 02
75 53
75 43
75 38
75 36
c. g. s.
1490
1485
1483
1485
1488
1495
1506
1516
1527
1538
1546
1550
1550
-o'.4
+0.7
Year (Jan. i)
45* N: 80° W
1840
1845
1850
1855
i860
1865
1870
1875
1880
1885
1890
1895
1900
1905
D
I
f
/
76 II
76 14
76 17
3 21 W
76 17
3 46
76 16
4 08
76 13
4 28
76 09
4 50
76 03
5 16
75 56
5 34
75 47
5 52
75 39
6 II
75 34
6 27
75 30
6 42 W
75 30
45* N: 85° W
I
45° N; 90" W
.g.s.
/
• 1533
• 1528
•1525
■ 1523
2 31
.1522
2 07
• 1524
I 44
. 1526
I 20
.1531
56
• 1535.
30
. 1542
06
■ 1548
17
• 1554
38
• 1557
54
• 1560
I 06
E
W
w
75 52
75 56
75 59
76 00
76 00
75 59
75.57
75 52
75 48
75 40
75 33
75 28
75 25
75 24
H I
c. g. s.
1561
1560
1557
1562
1564
1565
1566
1567
1570
1570
1570
8 40 E
8 18
7 55
7 31 .
7 06
6 41
6 17
5 57
5 36 E
c. g. s.
75 II
75 15
75 19
75 21
75 21
.1635
75 21
•1633
75 19
• 1631
75 17
.1628
75 15
. 1626
75 08
. 1624
75 03
■ 1623
75 01
. 1624
74 59
. 1623
75 00
. 1620
Annual change in 1 905 o -f 2 ' . 6
+0.5 I +i'.8
o'. o
0.0
-o'.4
o'. O '
-0.8
a A plus sign invariably means a numerical increase of the ma^etic element for 1905 and a mmtw sign denotes
a numerical decrease. The horizontal intensity changes are given in units of the fourth decimal C. G. S. units.
Ii6
MAGNETIC TABLES AND CHARTS FOR 1905.
Table IV. — SectUar changes for the United States in the three magnetic elements, declination (D)t
inclination (/), and horizontal intensity (//), from 1840 to 1903 — Continued.
1
45*
N: 9S*'W
45**
'N; looOW
45°
N; io5<»W
Year (Jan. i) \
D
I 1
H
D
I
H
D
I
H
/
« ' c.
g.s.
f
« ' C.
g.s.
/
/
c. g. s.
1840
1845
1850
1855
i860
15 36 E
1865
II 47 E
74 26
1710
15 II
1870
II 21
74 25 .
1703
14 46
17 27 E
1920
1875
10 57
74 24
1698
14 20
1786
17 08
. 1919
1880
10 32
74 24
1695
13 57
73 36
1786
16 49
72 22
. 1918
1885
10 06
74 21
1694
13 34
73 33
1784
16 32
72 20
. 1916
1890
9 43
74 18
1694
13 15
73 31
1781
16 19
72 20
• 1913
1895
9 25
74 15
1694
13 01
73 31
1778
16 12
72 21
. 1910
1900
9 20
74 15
1693
12 57
73 32
1775
16 12
72 22
. 1906
1905
9 18 E
74 18
1690
13 06 E
73 36
1770
16 24 E
72 24
. 1900
Annual change in 1905 ^
+ i'.o
4-o'.6
-0.9
-f2'.I
+o'.8
— I. 2
4-2'. 6
-)-o'.6
-1.5
Year (Jan. i)
.5»
N: 110° W
45»
N: 115° W
4S«
M; laa^.s W
f
D
I 1
H
D
I
H
D
I
H
/
° ' c
g.s.
/
« ' c
g.s.
/
/
c, g. s.
1840
1845
1850
19 55 E
68 36
•2175
1855
20 10
68 35
.2175
i860
20 24
68 34
. 2170
1865
20 37
68 37
.2162
1870
19 25 E
71 30
1939
20 03 E
70 08
2008
20 49
68 40
.2153
1875
19 10
71 31
1938
19 59
70 07
2016
20 58
68 40
•2145
1880
18 55
71 30
1937
19 52
70 07
2013
21 06
68 39
•2135
1885
1844
71 27
1935
19 47
70 07
2009
21 10
68 37
.2127
1890
18 37
71 25
1932
19 46
70 08
2004
21 14
68 34
. 2121
1895
18 36
71 26
1928
19 49
70 II
1999
21 21
68 30
.2117
1900
18 40
71 27
1925
19 56 ^
70 14
1994
21 32
68 26
.2115
1905
18 54 E
71 30
1920
20 12 E
70 18
1990
21 51 E
68 24
.2115
Annual change in 1905 «
+3'.o
+o'.5
-1.3
+3'. 4
+o'.6
0.0
+3'. 9
-0^.8
0.0
Year (Jan. I)
40
" N: 75* W
40
°N:8o» W
40
"NiSs^W
D
I
H
D
I
H
D
I
H
/
<» ' c
.g.s.
/
° ' c
.g.s.
/
/
c. g. s.
1840
72 10
71 57
1916
71 29
1845
4 17 W
72 16
. 1890
72 01
1916
71 34
1850
4 33
72 20
.1883
02 w
72 03
. 1916
4 27E
71 36
.2040
1855
4 50
72 22
.1880
19
72 04
. 1918
4 08
71 36
•2035
i860
5 08
72 22
.1883
37
72 03
1920
3 51
71 36
.2030
1865
5 27
72 18
. 1891
56
72 00 1
•1923
3 35
71 34
. 2026
1870
5 46
72 13
. 1902
I 17
71 57
. 1928
3 17
71 32
. 2022
1875
6 05
72 05
. 1911
I 38
71 51
•1934
2 58
71 28
. 2018
1880
6 24
71 55
. 1919
I 59
71 43
.1941
2 38
71 23
.2015
1885
6 41
71 43
■1925
2 18
71 35
1945
2 19
71 15
.2015
1890
6 58
71 33
•1930
2 37
71 25
.1946
I 59
71 08
. 2014
1895
7 14
71 27
.1931
2 58
71 17
.1946
I 39
71 03
. 2011
1900
7 31
71 24
. 1928
3 16
71 14
1942
I 22
71 02
. 2002
1905
7 48 W
71 24
. 1920
3 30 W
71 18
1930
I 12 E
71 06
.1990
Annual change in 1905 <»
+3'. 3
o'.o
— 2. 2
+ 2'. 5
+ i'.o 1
1
-3.9
-i'-5
-hi'.i
-3.5
a A plus sign invariably means a numerical increase of the magnetic element for 1905 and a minus sign denotes
a numerical decrease. The horizontal intensity changes are given in units of the fourth decimal C. G. S. units.
SECULAR CHANGES IN THE MAGNETIC ELEMENTS.
117
Table IV. — Secular changes for the United States in the three magnetic elements, declination (D),
inclination (/), and horizontal intensity (//), from 1840 to 1^03 — Continued.
Year (Jan. i)
40
»N;9o<'W
40
''N;95*W
40»
N; 100° W
(
D
'
H
D
I '
H
D
I
H
! /
/
c. g. s.
f
° ' C
g.s.
/
/
c. g. s.
1840
70 35
1845
70 31
1850
70 30
1855
70 30
i860
7 " H
70 31
.2086
II 13 E
69 39
14 01 E
69 00
1865
6 58
70 34
.2082
10 56
69 43
13 41
69 00
1870
6 44
70 37
.2079
10 38
69 46
2128
13 19
69 00
.2188
1875
6 26
70 36
. 2076
10 20
69 46
2128
12 54
68 57
.2188
1880
i 6 05
70 32
•2075
9 56
69 43
2127
12 34
68 55
.2187
1885
5 47
70 29
.2074
9 34
69 41
2125
12 14
68 53
.2185
1890
5 28
70 26
. 2072
9 15
69 38
2123
12 00
68 52
.2182
1895
5 12
70 25
.2068
9 00
69 39
2118
II 49
68 54
. 2178
1900
; 5 02
70 26
. 2060
8 53
69 42
2112
II 46
68 59
.2172
1905
' 5 ooE
70 30
. 2050
9 00 E
69 48
2100
II 54 E
69 06
. 2i6o
Annual change in 1905 <»
1 -ho'. I
-f-i'.3
-2.7
+...»
+ i'.5
-2.9
+ 2'. I
+ i'.4
-2.9
Year (Jan. i)
40°
N; io5*»W
40«
N: 110" W
40«
N; 115° W
D
I
H
D
'
H
D
I
H
/
/
c. g. s.
/
° ' \ c
.g. s.
/
/
c. g. s.
1840
1
1845
1850
1855
i860
1865
1870
15 16 E
67 56
.2272
16 39 E
66 54
2344
17 12 E
65 35
.2384
1875
14 57
67 53
.2266
16 28
66 53
2337
17 09
65 36
.2377
1880
14 39
67 51
. 2261
16 14
66 52
2332
17 04
65 35
.2371
1885
14 23
67 51
•2257
16 03
66 51
2327
17 00
65 34
.2366
1890
14 12
67 51
.2253
15 56
66 52
2323
16 5S
65 35
.2361
1895
14 06
67 52
.2248
15 54
6653
2317
17 02
65 36
.2355
1900
'^ °Zr.
67 56
. 2240
15 58
66 56
2309
17 09
65 38
•2348
1905
14 18 E
68 00
. 2230
16 12 E
67 00
2300
17 24 E
65 42
■2340
Annual change in 1905
+2'. 5
+ i'.o
-2.6
+3'.o
+0^.7
-2.4
-fy.2
+o'.6
—2.0
Year (Jan. i)
40°
N: i2o«W
35
° N; So** W
35
*» N; 85° W
1
D
I
. H
D
I
H
D
I
H
/
/
c. g. s.
/
° ' c
. g, s.
/
/
c. g. s.
1840 [
1845
2 40 E
1850
2 24
4 50 E
1855
2 07
6657
2384
4 34
66 21
i860
64 48
I 49
66 58
2379
4 18
66 16
1865
64 46
I 30
66 57
2374
4 01
66 13
1870
17 35 E
64 44
.2429
I 10
6654
2369
3 42
66 08
•2450
1875
17 38
64 44
. 2420
51
66 45
2367
3 22
66 04
.2450
1880
17 40
64 44
.2412
32
66 35
2363
3 02
65 59
.2444
1885 ,
17 41
64 44
. 2406
14 E
66 26
2359
2 42
65 53
.2440
1890
17 44
64 44
.2399
05 W
66 21
2352
2 23
65 50
.2448
1895
17 51
64 45
.2392
24
66 20
2347
2 07
65 49
. 2428
1900
18 01
64 45
. 2386
39
66 22
2337
I 53
65 52
.2418
1905
18 18 E
64 48
.2380
54 W
66 30
2320
I 48 E
66 00
. 2400
Annual change in 1905 ^ 1
+3'. 7
+0'. I
—0. 2
+y.2
+ i'.6
-4.8
-o'.4
+ i'.8
-4-3
« A piiis sign invariably means a numerical increase of the magnetic element for 1905 and a minus sign denotes
a numerical decrease. The horizontal intensity changes are given in units of the fourth decimal C. G. S. units.
ii8
MAGNETIC TABLES AND CHARTS FOR 1905.
Table IV. — Secular changes for the United States in the three magnetic elements , declination (D),
inclination (/), and horizontal intensity (//), from 1840 to 1903 — Continued.
i
*> N: 90** W
35
*N: 95' W
35-
N: 100° \V
Year (Jan. i)
' D
I
H
D
I
H
D
I
H
/
/
c. g. s.
/
/
c. g. s.
#
/
c. g. s.
1840
66 10
1845
66 10
1850
66 08
1855
8 04 E
66 05
i860
7 46
65 59
1865
7 26
65 51
10 04 E
II 49
E
1870 1
7 05
65 44
. 2462
9 40
•II 34
63 28
1875 i
6 46
65 37
. 2462
9 20
6448
•2551
II 18
63 27
•2595
1880 1
6 28
65 32
. 2461
8 57
64 44
•2539
II 01
63 22
•2583
1885
6 10
65 26
.2458
8 36
64 40
.2528
10 43
63 20
.2573
1890
5 52
65 25
•2455
8 19
64 41
.2520
10 29
63 20
.2564
1895
5 37
65 25
.2447
8 07
64 40
.2510
10 20
63 25
•2556
1900
5 28
65 27
.2437
8 02
64 44
.2499
10 19
63 32
.2546
1905
5 30 E
65 36
. 2420
8 12 E
-1-2'.
64 54
. 2480
10 30
+2'
E
•3
63 42
.2530
Annual change in 1905
1
1
+2'. 5
-4.2
-f-2'.2
-4.0
+ 2'.0
-4.5
Year (Jan. i)
1
1
N: ios°W
35°
N; 110° W
35''
N: iis'W
1 D
I
H
D
I
H
D
I
H
jo,-
/
c. g. s.
/
/
c. g. s.
/
/
c. g, s.
1840
1
1845
1850
60 32
1855
60 37
i860
60 41
1865
60 47
1870
13 22 E
62 32
14 18 E
62 07
.2636
14 25 E
60 49
.2677
1875
13 07
62 30
. 2620
14 09
62 06
. 2627
14 26
60 50
.2665
1880
12 54
62 24
.2608
14 00
62 06
. 2619
14 26
60 51
.2654
1885
12 39
62 24
•2599
13 50
62 06
.2613
14 25
60 52
.2646
1890
12 28
62 24
.2590
13 44
62 06
.2607
14 25
60 53
.2637
1895
12 23
62 28
•2583
13 42
62 09
. 2601
14 29
60 54
.2631
1900
12 24
62 34
•2573
13 47 ^
62 13
•2593
14 38
60 57
.2625
1905
12 36 E
62 42
.2560
14 00 E
62 18
.2590
14 54 E
61 00
. 2620
Annual change in 1905 «
1 +2'. 6
+ i'.7
-3-3
+2'. 8
-fl'.O
-2.7
+3'. 2
o'.o
— 2.0
Year (Jan. i)
35*
N: i9o»W
30
»N; Sj^W
30
»N: 93° w
D
I
H
D
I
H
D
I
H
/
/
c. g. s.
/
f
c. g. s.
#
/
c. g. s.
1840
1845
1850
60 00
4 50 E
6i 01
.2813
1855
14 28 E
60 03
4 34
61 06
.2803
i860
14 40
60 06
4 18
61 10
•2795
1865
14 51
60 08
4 00
61 13
.2788
1870
15 01
60 08
. 2720
3 42
61 14
.2780
7 34 E
59 25
.2836
1875
15 07
60 07
.2707
3 22
61 13
.2772
7 15
59 25
.2833
1880
15 12
60 06
.2695
3 03
61 07
.2763
6 59
59 26
.2828
1885
15 14
60 08
.2683
2 45
60 57
•2752
6 44
59 22
.2823
1890
15 16
60 II
. 2672
2 27
60 51
.2740
6 32
59 23
.2816
1895
15 23
60 13
.2663
2 II
60 53
•2725
6 17
59 26
. 2807
1900
15 35
60 14
.2656
I 59
61 03
. 2706
6 10
59 34
.2792
1905
15 54 E
+3'. 7
60 12
. 2650
-1-3
I 54 E
61 18
.2680
6 18 E
59 48
.2770
Annual change in 1905
-o'.7
-I'.O
+3'. 6
-7-1
H-2'.O
+3'. 5
-6.8
« A plus sign invariably means a numerical increase of the magnetic element for 1905 and a minus sign denotes a
numerical decrease. The horizontal intensity changes are given in units of the fourth decimal C. G. S. units.
SECULAR CHANGES IN THE MAGNETIC ELEMENTS.
119
Table IV. — Secular changes for the United States in the three magnetic elements, declination (D),
inclination (/), and horizontal intensity (//), from 1840 to 1905 — Continued.
Year Qan. i)
30-
N: 100° W
30°
N; 115OW
2S^ N; 80* W
D
I
H '
D
I
H
^ D
I
H
/
« ' C
g.s.
/
« ' C
g.s.
/
/
c. g. s.
1840
1845
57 48
1850
57 44
II 56 E
54 42
3053
4 25 E
55 46
.3111
1855
57 44
12 08
54 53
3040
4 13
55 49
.3099
i860
57 49
12 19
55 02
3026
. 3 59
55 49
.3086
1865
57 58
2961
12 28
55 09
301 1
3 42
55 48
.3073
1870
9 59 E
58 07
2942
12 34
55 II
2996
3 25
55 46
. 3057
1875
9 49
58 10
2924
12 36
55 10
2979
3 05
55 43
.3042
1880
9 36
58 05
2907
12 35
55 12
2964
2 48
55 40
.3025
1885
9 23
58 00
2891
12 32
55 15
2952
2 32
55 35
.3008
1890
9 09
58 01
2877
12 30
55 19
2940
2 18
55 35
.2990
1895
9 00
58 08
2865
12 33
55 25
2929
2 06
55 39
.2970
1900
9 00
58 17
2850
12 42
55 31
2920
I 56
55 48
.2949
1905
9 12 E
58 30
2830
13 00 E
55 36
2910
I 48 E
56 00
. 2920
Annual change in 1905 o-
+ 2'. 8
+3''.o
-5- I
+3'. I
+ i'.o
-2.3
-I'.O
+3'. 4
-6.0
Year (Jan, i)
as*'
N; xxo^'W
ao
»N: 80° w
ao
»N: 90'W
D
I
H
D
I
H
D
I
H
/
« ' C
g.s.
/
° ' ' c
.g.s.
/
/
c. g. s.
1840
9 28 E
48 26
3253
5 01 E
49 27
3294
8 00 E
1845
9 38
48 41
3246
4 59
4 50
49 23
3295
7 52
1850
9 49
48 55
3238
49 21
3295
7 42
1855
10 00
49 08
3229
4 51
49 19
3294
7 31
46 35
.3381
i860
10 09
49 20
3218
4 44
49 20
3292
7 20
46 37
.3373
1865
10 16
49 30
3204
4 33
49 23
3288
7 07
46 40
.3363
1870
10 21
49 39
3189
4 22
49 25
3276
652
46 43
■3349
1875
10 24
49 46
3170
4 03
49 27
3263
6 35
4646
.3332
1880
10 25
49 55
3155
3 44
49 30
3246
6 19
46 52
.3313
1885
10 25
50 01
3143
3 24
49 35
3225
6 07
46 59
•3293
1890
10 26
50 08
3130
3 07
49 42
3202
5 57
47 08
•3270
1895
10 30
50 16
3117
2 54
49 50
3177
5 48
47 19
.3245
1900
10 36
50 26
3104
2 44
50 01
3150
5 40
47 33
.3219
1905
10 48 E
50 36
3090
2 36 E
50 12
3120
. 5 36 E
47 48
.3190
Annual change in 1905 «
+2'.?
+ 2'.o
-31
-i'.8
+2', 6
-6.7
-o'.4
. +3'. 2
-6.1
Year (Jan. i)
aoo
N; 100*' W
2a°
N: 107* W
i
D
I
H
D
I
H
/
' C
,g.s.
/
« ' c
9' s.
1840
8 13 E
7 56 E
45 15
3364
1845
8 15
8 05
45 27
3359
1850
8 16
. 8 14
45 39
3353
1855
8 18
44 09
3452
8 23
45 51
3345
i860
8 19
44 12
3442
8 31
46 01
3338
1865
8 18
44 16
3430
8 37
46 II
3327
1870
8 17
44 22
3417
843
46 22
3316
1875
8 13
44 27
3400
8 49
46 32
3301
1880
8 06
44 34
3382
8 55
46 41
3286
1885
7 59
44 40
3364
9 01
46 46
3273
1890
7 54
44 50
3343
9 07
46 53
3260
1895
7 53
44 59
3323
9 13
47 00
3244
1900
7 57
45 13
3302
9 18
47 08
3228
1905
8 06 E
45 30
3280
9 24 E
47 18
3210
+ 2'.o
+ i'.8
....=
-4.0
Annual change in 1905 ^
+3'. 5
-50
« A plus sign invariably means a numerical increase of the magnetic element for 1905 and a minus sign denotes a
numerical decrease. The horizontal intensity changes are given in units of the fourth decimal C. G. S. units.
TABLK V.
THE MAGNETIC ELEMENTS AND MAGNETIC COMPONENTS FOR
EACH DEGREE OF LATITUDE AND LONGITUDE ON
JANUARY 1, 1905, FOR NORTH AMERICA,
FROM 17° N. TO 49" N.
MAGNETIC ELEMENTS AND COMPONENTS.
Explanatory remarks.
Table V contains for each degree of latitude and longitude from 17° north to 49° north the
quantities D (declination), / (inclination), and H (horizontal intensity) in C. G. S. units, scaled from
charts i , 2, and 3, and also the quantities derived by computation and likewise expressed in C. G. S.
units, viz: X, the component positive toward the north; Y, the component positive toward the east;
Z, the component positive downward, and F, the intensity of the Earth's total magnetic force.
This table contains the data used in the construction of charts 4 and 5 and will also serve as the
basis for future discussions of the United States magnetic field and its secular variations. The
scalings and computations were made independently by two persons. The maximum errors in
scaling are: zho°.o5 (3') in D and /, and dbo.0005 C. G. S. unit in H,
Table V.- — The magnetic elements and magnetic components for each degree of latitude and longitude on
Jantiary /, 1903, for North America, from if^ N, to 49° N.
LATITUDE 17** N.
Longitude W
D
I B
[ X
Y
z 1
F
Lonffitude W
74
I.2E
47.0
3"
3110
+.0065
3334
4559
74
75
I.5H
47.0
312
3120
+.0081
3345
4574
75
76
I.9E
47.0
314
3137
+ .0104
3366
4603
76
77
2.2E
46.9
315
3147
+ .0120
3367
4612
77
78
2.5E
46.8
316
3157
+ .0139
3365
4617
78
79
2.8E
46.8
318
3177
+ .0156
3387
4646
79
80
3.2E
46.7
319
3184
+ .0179
3385
4651
80
81
3.6E
46.5
320
3194
+ .0202
3373
4650
81
LATITUDE i8<> N.
•
74
i.iE
47.7
308
3080
+ 0059
.3385
.4577
74
75
1.5E
47.8
310
3100
-f.0081
.3419
.4616
75
76
1.9E
47.8
311
3107
+.0103
•3430
.4631
76
77
2.2 E
47.8
313
3127
+.0119
•3452
.4661
77
78
2.5 E
47.7
314
3137
+.0138
.3451
.4666
78
79
2.8E
47-7
315
3147
4-.OI54
•3462
.4681
79
80
3.1E
47-7
316
3157
+.0171
.3473
.4696
80
81
3.4E
47-7
318
3174
+.0188
•3495
•4725
81
82
3.8E
47.4
319
3184
+.0211
.3468
.4712
82
83
4. 2E
47.2
320
3190
+ 0234
.3456
.4710
83
84
4.5 E
46.8
321
3200
, +.0250
•3419
.4690
84
85
4.8E
. •46.4
322
3207
+.0270
.3381
.4669
85
86
50E
46.0
323
3217
4-. 0281
.3346
.4651
86
87
5-2 E
45.6
324
3227
+.0295
.3308
.4630
87
88
5.5E
45-2
325
3234
+.0312
.3273
.4612
88
89
5-7E
45-
325
3234
+.0322
.3250
.4596
89
90
6.0E
44.8
326
3244
+ 0342
.3237
.4593
90
91
6. I E
44.6
327
3250
+.0347
.3224
.4591
91
92
6.5E
44.4
328
3260
+.0371
.3211
.4592
92
123
124
MAGNETIC TABLES AND CHARTS FOR 1905.
Table V. — The magnetic elements and magnetic components for each degree of latitvde and longitude on
January i, 1905 y for North America, from 77° N. to 49^ N. — Continued.
LATITUDE 1
[9° N.
Longitude W
D
I K
[
X
^
z
F
Longitude W
74
i.oE
48.8
305
.3050
-I-.0052
3483
4630
74
75
1.4E
48.8
307
3070
+.0074
3506
4660
75
76
1.8E
48.8
308
3080
+.0095
3517
4675
76
77
2.1 E
48.9
310
3097
+.0115
3553
4715
77
78
2.3E
49.0
312
3117
+.0125
3588
4755
78
79
2.5E
49.1
313
3127
+.0138
3612
4780
79
80
2.8F
49.1
314 1
3137
+ 0154
3624
4795
80
81
3.2E
49.0
315
3144
-f.0176
3622
4801
81
82
3.6E
48.6
316
3154
+.0199
3583
4778
82
83
3.9E
48.1
317
3164
+.0216
3535
4745
83
84
4. 2 E
47.8
318
3170
+.0232
3508
4735
84
85
4-5 H
47.5
319
3180
+ .0249
3480
4721
85
86
4.7E
47-2
321
3200
+.0263
3467
4725
86
87
5.1E
46.9
322 1
3207
+ .0287
3442
4714
87
88
5.3E
46.6
322
3207
+.0296
3404
4685
88
89
5.5E
46.5
322
3204
+.0309
3394
4679
89
90
5.8E
46.3
322
3204
+ .0325
3368
4659
90
91
6.0E
46. 2
323
3214
+.0339
3369
4667
91
92
6. 2 E
45.8
325
3230
+.0351
3341
4660
92
93
6.4E
45-5
326
3240
+.0362
3319
4652
93
94
6.6E
45-2
327
3247
+.0376
3293
4640
94
95
6.9E
44^8
328
3257
-f.0394
3257
4622
95
96
7.2E
44.6
329
3264
+ .041 1
3244
4619
96
97
7-4E
44.6
330
3274
+.0426
3254
4633
97
98
7.6E
44.4
331
3280
+.0437
3240
4634
98
99
7-7g
44-3
331
3280
+.0444
3231
4629
99
100
7.9E
44.2
332
3290
+ .0455
3227
4631
100
101
8.0E
44.1
332
3287
-f.0461
3217
4625
lOI
102
8. lE
44. I
332
3287
+.0468
3217
4625
102
103
8. 2E
44.0
331
3277
+•0473
3197
4601
103
104
8.3E
44.0
331
3277
+ ■0477
3197
4601
104
105
8.4E
43-9
331
3274
+ .0483
3184
4594
105
LATITUDE
20«>N.
74
0.9E
50.2
302
.3020
+.0048
3624
.4717
74
75
1.3E
50.0
304
3040
-f.oo70
3624
■4730
75
76
1.6E
50.0
306
3060
-f.0086
3648
4761
76
77
1.8E
50.1
308
3080
+.0095
3684
4802
77
78
2.0E
50.2
309
3087
+.0108
3708
4827
78
79
2.3E
50.2
3"
3107
+-0124
3732.
4858
79
80
2.6E
50.2
312
3"7
+.0140
3744
4873
80
81
2.9E
50.0
313
3127
-f.0160
3731
4870
81
82
3.3E
49.6
314
3134
-f.0182
3690
4845
82
83
3.7E
49.2
314
3134
+.0204
3639
4804
83
84
3-9E
49.0
315
3144
+.0214
3622
4801
84
85
4.2E
48.8
316
3151
-f.0231
3609
4797
85
86
4.4E
48.6
317
3160
+.0244
3595
4793
86
87
4.8E
48.3
319
3177
+. 0268
3579
4795
87
88
5.1E
48. I
320
3187
-f.0285
3568
4790
88
89
5-4E
47.9
319
3177
+.0300
3531
4759
89
90
5.6E
47.8
319
3174
+ 0313
3519
4750
90
91
5.9E
47.6
320
3184
-I-.0330
3504
4746
91
92
6. I E
47.4
321
3191
+.0340
3489
4741
92
93
6.3E
47.1
322
3201
+• 0354
3465
4730
93
94
6.6E
46.8
323
3207
+ 0371
3440
4719
94
95
6.9E
46.6
324
3217
+.0389
3425
4714
95
96
7.1E
46.5
325
3224
+. 0403
3426
4722
96
97
7-4E
46.4
326
3234
-f.0421
3423
4727
97
98
7.6E
46. 2
327
3241
+. 0432
341 1
4725
98
99
7.9E
45-8
327
3241
+.0448
3362
4689
99
100
8.1 E
45-5
328
3247
+.0462
3339
4681
100
lOl
8.2 E
45-2
328
3247
+.0469
3303
4654
lOl
102
8.3E
45.2
•328
3247
+.0472
3303
4654
102
103
8.4E
45-2
327
3234
+.0477
3293
4640
103
104
8.5E
45 2
327
3234
+.0484
3293
4640
104
105
8.6E
45-2
327
3234
+.0490 .
3293
4640
105
106
8. 7 E
45. I
327
3231
+• 0494
3283
4634
106
107
8.9E
44-9
328
•3241
+.0508
3270 1
4631
107
MAGNETIC ELEMENTS AND COMPONENTS.
125
Table V. — The magnetic elements and magnetic components for each degree of latitude and longitude on
January i, 1903, for North America^ from I'f N, to 49° N. — Continued.
LATITUDE 210 N.
Longitude W
D
I h
[
X
Y
z
F
Loncitude W
74
0. 7 E
514
299
2990
-f.0036
.3746
4793
74
75
I.I E
51.0
301
3010
+•0057
.3717
4783
75
76
1.3E
50.8
303
3030
+.0070
• 3715
4793
76
77
1.5E
50.9
305
3050
+.0079
.3752
4837
77
78
1.7E
51.0
306
3060
+ .0092
•3779
4862
78
79
2.0E
51. I
308
3077
-f.0108
.3816
4903
79
80
2.3E
511
309
3087
+ .0124
.3829
4919
80
81
2.7E
50.9
310
3097
+.0146
•3813
4917
81
82
3.0E
50- 6
3"
3107
+ .0162
•3785
4898
82
83
3.2E
50.3
3"
3104
+.0174
.3748
4870
83
84
3.5E
50.1
312
3"4
+.0190
•3732
4864
84
85
3.8E
50.0
314
3134
+ .0207
•3743
4886
85
86
4. 2E
50.1
313
3121
4". 0228
.3743
4880
86
87
4.6E
49.8
314
3131
+.0251
.3715
4864
87
88
50E
49.6
315
3137
+.0274
.3701
4860
88
89
5.2E
49-4
316
3147
+.0288
.3688
4857
89
90
5.5E
49.3
316
3144
+.0303
•3675
4847
90
91 .
5.7E
49.2
316
3144
+ 0313
.3662
4835
91
92
6.0E
. 48.9
317
3154
+.0333
• 3633-
4822
92
93
6.3E
48.7
318
3161
+.0350
•3619
4818
93
94
6.6E
48.4
319
3168
+. 0367
•3592
4804
94
95
6.8E
48.2
320
3178
+.0378
.3578
4800
95
96
7.2E
47-9
321
3184
4-0401
.3553
4789
96
97
7.4E
47.7
322
3194
+.0415
•3539
4785
97
93
7.7E
47-5
322
3191
+.0431
.3513
4766
98
99
8.0E
47-3
323
3198
+.0449
.3501
4764
99
100
8.2E
47.0
324
3208
+.0463
.3473
4750
100
lOI
8.4E
46.8
324
3204
+.0473
.3451
4734
lOI
102
8.5E
46.8
324
3204
+.0480
•3451
4734
102
103
8.6E
46.6
324
3204
+.0486
.3425
4714
103
104
8.7E
46.5
324
3201
+.0489
.3415
4708
104
105
8.8E
46.5
324
3201
+.0496
•3415
4708
105
106
8.9E
46.4
324
3201
+.0502
.3402
4698
106
107
9.2E
46.1
3.4 j
3198
+.0518
.3366
4672
107
LATITUDE 22« N.
74
0.4E
52.5
296
. 2960
+.0021
■3857
.4863
74
75
0. 7E
52.4
298
2980
-f.0036
.3871
4884
75
76
i.oE
52.3
300
3000
+.0051
.3882
4905
76
77
1.2E
52.2
302
3020
+.0063
.3893
4929
77
78
1.4E
52.1
304
3040
+.0073
3906
4949
78
79
1.8E
52.1
305
3050
+.0095
3919
4965
79
80
2. lE
52.0
306
3057
+.0113
3917
4969
80
81
2.4E
51.8
307
3067
-f.0129
3902
4964
81
82
2.7E
517
307
3067
+ .0144
3887
4952
82
83
3.0E
514
307
3067
+.0160
3847
4921
83
. 84
3.4E
512
309
3084
-+-.0182
3844
4932
84
85
3-7E
51. 1
310
.3094
-j-. 0202
3841
4935
85
86
4.1E
51- I
308
3071
H-.0222
3816
4903
86
87
4.5 E
51.0
310
3091
-f.0242
3828
4926
87
88
4.9E
50.8
312
3108
+ .0265
3825
4936
88
89
5.2E
50- 6
312
3108
+ .0284
3797
4914
89
90
5.4E
50.6
313
3117
+ .0294
3809
4930
90
91
5.7E
50.5
313
3114
+ .0310
3797
4920
91
92
5-9E
50.3
313
31x4
+ .0322
3772
4902
92
93
6. 2E
50.1
314
3121
-f.0339
3755
4895
93
94
6.5E
49 7
315
3131
4-0356
3714
4870
94
95
6.9E
49.4
316
3138
+ ■0379
3688
4857
95
96
7.2E
49.2
317
3145
+ .0396
3674
4850
96
97
7.5E
48.9
318
3151
+ 0417
3644
4837
97
98
7.8E
48.7
318
3151
+ .0432
3619
4818
98
99
8.1 E
48.5
319
3158
-h.0450
3605
4814
99
100
8.3E
48.3
319
3158
+ .0459
3579
4795
100
lOI
8.5 E
48.1
320
3165
+ . 0474
3568
4790
lOI
126
MAGNETIC TABLES AND CHARTS FOR 1905.
TablB V. — The magnetic elements and m^agnetic components for each degree of latitude and longitude on
January j, 1903, for North America, from if N, to 49° N. — Continued.
LATITUDE 22** N.— Continued.
Longitude W
D
I
H
X
Y
Z
P
Longitude W
102
8.7E
47.9
.320
.3162
+ .0483
3542
4774
102
103
8.8E
47-7
.320
.3162
+.0490
3517
4755
103
104
8.9E
47.7
.320
.3162
-f.0496
3517
4755
104
105
9.0E
47-7
.320
.3162
+ .0499
3517
4755
105
106
9. 2 E
47.6
.320
.3158
4-0512
3504
4746
106
107
9-4E
47.3
•321
.3168
+ .0523
3480
4735
107
108
9.7H
47- I
•321
• 3165
+ •0539 '
3454
1
4715
108
LATITUDE 23° N.
1
72
0. 8 W
54.2
288
2880
— .0040
3995
4925
72
73
0.4W
54.0
290
2900
—.0020
3990.
4933
73
74
0.0
53-8
291
2910
.0000
3975
4927
74
75
0.4E
53-7
293
2930
+.0021
3988
4949
75
76
0.6E
53-5
296
2960
+.0030
3999
4976
76
77
0.9E
53-4
298
2980
+. 0048
4011
4997
77
78
1.2E
53-2
300
3000
+ .0063
401 1
5007
78
79
1.6E
^53.1
302
3020
+.0085
4023
5031
79
80
1.9E
53-
303
3027
+.0100
4021
5036
80
81
2.3E
52.9
303
3027
-f-.OI2I
4006
5024
81
82
2.7E
52.8
304
3037
+ .0143
4004
5028
82
83
3.2E
53-
303
3024
-f.0170
4021
5036
•83
84
3.5E
52.3
305
3044
-I-.OI86
3947
4987
^
85
3.9E
52.4
305
3044
-I-.0207
3952
4999
85
86
4. 2 E
52.2
304
3031
-f 0222
3919
4961
86
87
4-5E
52.0
305
3041
+.0238
3904
4953
87
88
4.8E
51-8
307
3058
+ .0258
3902
4964
88
89
5.2E
51-7
309
3078
+.0281
3912
4984
89
90
5.4E
51.8
309
3078
+.0290
3927
4997
90
91
5-7E
51.8
309
3075
-f.0306
3927
4997
91
92
5.9E
51.6
309
3075
+.0318
3900
4975
92
93
6.3E
51-4
310
3081
+.0341
3884
4969
93
94
6.6E
510
3"
3088
+.0358
3841
4942
94
95
6.9E
50.7
312
3098
+.0374
3813
4927
• 95
96
7.2E
50.5
313
3105
+.0391
3797
4920
96
97
7.6E
50.2
314
3112
+.0414
3768
4905
97
98
7.9E
49-9
314
3112
+.0430
3730
4873
98
99
8.2E
49.8
315
3118
+.0450
3726
4879
99
100
8.5E
49.6
315
3115
-h.0466
3701
4860
100
lOI
8. 7 E
49-3
316
3122
+. 0477
3675
4847
lOI
102
8.9E
•49.1
316
3122
+.0490
3647
4825
102
103
9.0E
49.0
316
3122
+.0493
3634
4816
103
104
9. 2 E
48.9
316
3119
+.0506
3621
4806
104
105
9-4E
48.8
317
3129
+.0517
3620
4812
105
106
9.5 E
48.8
317
.3126
+ 0523
3620
4812
106
107
9.7E
48.6
317
.3126
+ 0533
3595
4793
107
108
10. E
48.4
318
.3132
+•0553
3581
4789
108
109
10.2 E
48. 2
.318
.3129
+.0563
3555
■4770
109
no
10.3 E
48.2
.320
.3149
+ 0573
.3578
.4800
no
III
10.5 E
47-9
.323
•3i'75
+.0588
.3576
•4819
III
112
10.7 E
47.6
.323
.3175
+.0601
.3537
.4790
112
"3
10. 8 E
47-4
.322
.3162
4-. 0602
.3500
■4756
"3
LATITUDE 24° N.
°
72
I.I W
55.6
.283
.2830
— .0054
73
0. 7 W
55-4
.285
.2850
-.0034
74
0.4 w
55- I
.287
. 2870
— .0020
75
0.0
54.8
.289
. 2890
.0000
76
0.3E
54.6
.291
. 2910
+ .0015
77
0.6E
54-5
.293
.2930
-I-.0029
78
i.oE
54.4
. 296
.2960
-f.0050
.4132
.5009
72
•4132
.5019
73
•4113
•5017
74
.4098
.5014
75
.4094
•5023
76
.4108
.5046
77
.4135
•5085
. 78
MAGNETIC ELEMENTS AND COMPONENTS.
127
Table V. — The magnetic elements and magnetic components far each degree of latitude and longittide on
January J, 1903, for North America^ from 17^ N. to 49° N. — Continued.
LATITUDE 24« N.— Continued..
Lonsitude W
D
I H
X
Y
z
F
Longitude W
79
I.4E
54.4
298
2980
+ .0072
4163
.5120
79
80
I.8E
54-3
300
3000
+ .0093
4176
•5142
80
81
2.2E
54-3
298
2977
+.0113
4148
.5108
81
82
2.6E
54.3
299
2987
+ .0135
4162
•5125
82
83
3IE
53-9
299
2987
+ .0161
4099
.5074
83
84
3.5H
53.6
300
2994
+.0183
4068
.5055
84
85
4.0E
53-5
300
2994
+.0210
4053
•5043
85
86
4.3E
53-3
300
2991
+ .0225
4026
.5019
86
87
4.6E
53.2
300
2991
+ .0240
4011
.5007
87
88
4.9E
53.2
302
3008
+ 0257
4038
.5040
88
89
5.2E
53.1
304
3028
+ .0277
4049
.5065
89
90
5-4E
53.2
304
3028
+ .0286
4064
.5074
90
91
5.7E
53- I
304
3025
+ .0301
4049
•5065
91
92
6.0E
52.8
304
3025
+ .0319
4004
.5028
92
93
6.3E
52.6
306
3042
+ .0337
4002
.5037
93
94
6.6E
52.2
307
3049
+ 0353
3957
.5010
94
95
7.0E
52.0
308
3058
+ .0376
3942
.5002
9§
96
7.3E
51.8
310
3075
+ 0394
3940
•5013
96
97
7.6E
516
310
3072
+ .0409
3912
.4991
97
98
8.0E
51.4
310
3069
+ 0431
3884
.4969
98
99
8.3E
51-2
3"
3079
-f.0448
3869
.4964
99
100
8.6E
51.0
3"
3076
+ .0466
3841
.4942
100
lOI
8.9E
50.8
312
3083
+ .0484
3825
.4936
lOI
102
9. I E
50.6
313
3089
4-. 0495
3809
.4930
102
103
9.3E
50.4
.313
3089
+.0507
3784
.4911
103
104
9.4E
50- 3
313
3089
-f.0510
.3772
.4902
104
105
9.6E
50.2
.312
.3076
+.0521
•3744
.4873
105
106
9.8E
50.0
312
.3073
+.0530
■3719
.4855
106
107
10. oE
49.8
313
3083
+.0545
.3703
.4848
107
108
10. 2 E
49-7
314
.3090
+.0556
.3702
•4854
108
109
10. 4 E
49-7
.314
.3090
+.0568
.3702
.4854
109
no
10. 5 E
49.8
.317
.3116
+ 0577
•3750
.4910
no
III
10.7 E
49-4
320
.3146
+ 0595
■3734
.4918
III
112
10.9 E
48.8
.321
.3152
+.0607
.3666
•4873
112
"3
II. oE
48.7
.320
.3142
+.0611
.3642
.4848
"3
114
II. 2 E
48.7
318
.3120
+.0617
.3619
.4^18
114
LATITUDE 25° N.
71
1.8W
56.9
.278
.2780
—.0086
. 4265
5090
71
72
1.4 w
56.8
.279
.2790
— .0067
• 4263
5095
72
73
i.oW
56.7
.280
.2800
--.0048
.4262
5099
73
74
0.7 w
56.5
.282
. 2820
-.0034
.4261
5IIO
74
75
0.4W
5^.3
.284
.2840
—.0020
• 4257
5118
75
76
0.0
56.3
.286
.2860
.0000
.4287
5154
76
77
0.4E
56.0
.288
.2880
+.0020
.4271
5149
77
78
0.9E
55-9
.290
. 2900
+ .0046
.4283
5174
78
79
1.3E
55.8
.292
. 2920
+.0067
.4295
5195
79
80
1.8E
56.0
.292
. 2920
+ .0091
.4330
5221
80
81
2.2E
55-7
.290
.2897
+ .01 10
• 4251
5148
81
82
2.6E
55-5
•293
.2927
+ .0132
• 4263
5174
82
83
2.9 E
55-2
.293
.2927
+.0149
.4216
5133
83
84
3.4E
55-
.294
■2934
+ 0173
.4198
5124
84
85
3-9E
55-
.295
.2944
-f .0201
.4213
5142
85
86
4. 2 E
54.8
.295
.2941
4-. 0215
.4183
5II8
86
87
4.5 E
54-6
. 296
.2951
-I-.0231
..4165
5109
87
88
4.8E
54-5
.298
.2968
+.0250
.4178
5132
88
89
5.2E
54-5
.299
.2978
-f.0272
.4192
5149
89
90
5.5E
54-5
■299
•2975
-f.0287
.4192
5149
90
91
5-8E
54-4
.299
.2975
+.0302
.4177
5137
91
92
6.1 E
54.2
.300
.2982
+.0318
.4161
■ 5130
92
93
6.4E
53.8
.302
.3002
-f.0335
.4125
.5113
93
'94
6.8E
53-4
.303
.3P09
+.0358
.4078
.5081
94
95
7.1E
53.2
.304
.3016
+•0377
.4064
.5074
95
96
7.4E
53-
.306
.3036
+.0395
.4061
.5086
96
97
7.8E
52.8
.306
.3032
4". 0416
.4030
.5061
97
128
MAGNETIC TABLES AND CHARTS FOR 1905.
Table V. — The magnetic elements and magnetic components for each degree of latitude and longitude on
January J, 190^, for North America, from 17® iV. to 49^ N, — Continued.
LATITUDE 25° N.— Continued.
Longitude W
D
I H
L
X
Y
z
P
Longitude W
98
8. lE
52.6
306
.3029
-I-.0431
.4002
5037
98
99
8.4 E
52.6
307
.3036
+ .0448
.4016
5053
99
100
8.7E
52.4
307
• 3033
-f.0464
.3988
5032
100
lOI
9.0E
52.2
308
.3043
-f.0480
■3970
5027
lOI
102
9.3E
52.0
309
.3050
+ .0501
•3955
5018
102
103
9.5 E
51.8
309
.3047
+ .0510
.3927
4997
103
104
9-7E
51.6
309
.3047
+ 0519
.3900
4975
104
105
9.8E
515
308
.3034
-f-0524
.3872
4946
105
106
10. E
514
308
.3034
+.0536
.3859
4937
106
107
10.2 E
51.2
309
• 3041
-I- 0547
.3844
4932
107
108
10. 4 E
510
310
• 3050
+ .0561
.3828
4926
108
109
10. 6 E
50.8
309
.3037
-f.0569
.3788
4888
109
no
JO. 8 E
50.6
309
.3034
+.0578
.3761
4867
no
III
10.9 E
50.5
312
.3064
+ .0590
• 3785
4905
III
112
II. lE
50- 3
316
.3100
4-. 0610
.3808
4949
112
"3
II. 3E
50- 3
316
.3100
•f.0619
.3808
4949
"3
114
II. 4E
50.2
314
• 3077
+.0622
.3768
4905
114
"5
II. 5E
49.8
312
.3058
+.0621
.3691
4833
"5
116
II. 7E
49-3
310
.3035
+.0629
'3605
4755
116
"7
II. 7 E
48.9
308
• 3015
+.0625
•3530
4685
117
118
II. 8E
48.6
307
.3006
+.0626
.3481
4642
n8
119
II. 9E
48.4
306
.2996
+.0630
•3446
4608
119
120
II. 9 E
48.3
304
.2976
-f.0626
34"
4569
120
121
12. oE
48. I
303
.2963
+.0630
.3378
4536
121
LATITUDE 260 N.
71
2.2 W
58.1
•274
.2737
—.0104
4403
•5184
71
72
1.8W
58.1
.275
.2750
— .0085
4419
.5203
72
73
1.4W
58.0
.276
. 2760
-.0066
4416
.5208
73'
74
i.oW
58.0
•277
.2770
-.0047
4432
.5227.
74
75
0.7 W
57.8
•279
.2790
-.0033
4431
.5237
75
76
0.3W
57.8
.280
. 2800
— .0014
4446
.5256
76
77
o.-i E
57.6
.282
.2820
+.0006
4444
.5262
77
78
0. 7E
57.3
.284
.2840
+ .0034
4425
.5257
78
79
1.3E
57- I
.285
.2850
+.0066
4406
•5247
79
80
1.8E
57.0
.286
.2860
+.0089
4404
•5251
80
81
2. lE
56.9
.286
.2857
+.0106
4387
.5237
81
82
2.3E
56.7
.287
.2867
+.0115
4368
.5226
82
83
2.8E
56.7
.288
.2877
+ .0141
4383
.5244
83
84
3-3E
56.5
.289
.2884
+.0168
.4367
•5237
84
85
3.7E
56.3
.290
.2894
+.0188
.4347
.5226
85
86
4.1E
56.2
.291
.2901
4". 0210
.4348
.5232
86
87
4.4E
56.0
.292
. 291 1
+.0225
■4330
.5221
87
88
4.8E
55-7
•293
.2918
+.0246
4295
.5201
88
89
5.2E
55.7
.294
.2928
+.0268
4310
.5218
89
90
5.5E
55-7
•294
•2925
+.0282
4310
.5218
90
91
5.8E
55-6
.294
.2925
+.0297
4292
.5204
91
92
6.2E
55.3
.296
.2942
+.0320
4274
.5201
92
93
6.5 E
55-
.297
•2952
+.0336
4241
•5177
93
94
6.9 E
54.6
.299
.2969
+ 0359
4207
.5161
94
95
7.2E
54.5
.300
.2976
+.0375
4206
.5166
95
96
7.6E
54-3
.302
.2993
+.0399
4204
.5176
96
97
8.0E
54.1
.302
.2990
-f.0420
4171
.5149
97
98
8.3 E
53-8
.303
.3000
+.0436
4139
.5130
98
99
8.6E
53-6
•303
.2997
4". 0454
4:09
.5106
99
100
8.9E
53-6
.303
.2994
+.0470
4109
.5106
100
lOI
9.2E
53-5
.303
.2991
+.0485
4094
•5093
lOI
102
9.5E
53-3
•304
.2997
-f.0502
4080
.5086
102
103
9.7E
53- I
.305
.3007
-f.0512
4063
.5081
103
104
9.9E
52.9
•305
.3004
-I-.0525
4032
•5057
104
105
10. E
52.8
.304
.2994
+ 0529
4004
.5028
105
106
10.2 E
52.6
.305
.3001
+.0540
3989
.5020
106
107
10. 4 E
52.4
•305
.3001
+.0552
3962
.4999
107
108
10. 7 E
52.3
.306
.3008
-f.0569
3960
.5003
108
109
10. 9 E
52.1
.306
•3005
+.0578
3932
.4982
109
no
II. I E
51.7
.306
.3002
-I-.0591
3874
.4936
no
MAGNETIC ELEMENTS AND COMPONENTS.
129
Table V. — The magnetic elements and magnetic components for each degree of latitude and longitude on
Janimry i, 1905, for North America, from ly^ N. to 49^ N, — Continued.
LATITUDE 26«> N.— Continued.
Longitude W
D
I H
X
Y
Z
P
Longitude W
III '
II. 2 E
51-5
308
.3021
+ .0598
3872
4946
III
112
11. 4E
51-7
311
.3048
+ .0616
3937
5016
112
113
II. 5 E
519
312
.3058
+.0621
3978
5058
113
114
II. 6E
51.8
3"
.3048
+ .0625
3953
5029
114
"5
II. 8E
51-5
309
• 3025
+ .0630
3884
4963
"5
116
II. 9E
50.8
307
.3006
+ .0632
3764
4857
116
"7
12. oE
50.1
305
• 2983
+ .0634
3648
4755
"7
118
12.0 E
49.8
304
• 2973
+ .0632
3596
4709
118
119
12. 1 E
49.6
303
.2963
-f.0636
3560
4675
119
120
12.2 E
49-5
302
.2951
+ .0637
3536
4651
120
121
12. 4E
49.3
301
.2941
-f.0647
3501
4617
121
LATITUDE 27° N.
71
^ 2.5W
59-
.270
.2697
— .0119
4493
5243
71
72
2. 2 W
59.0
.271
.2707
— .0103
4509
5263
72
73
1.8 W
59
. 272
. 2720
--.0084
4526
5282
73
74
1.4W
59-
•273
.2730
-.0066
4543
5302
74
75
i.o W
5!- 2
•274
.2740
-.0047
4543
5305
75
76
0.6 W
58.8
•275
•2750
— .0028
4540
5308
76
77
0. 2 W
58.7
.276
. 2760
— .0008
4540
5313
77
78
0.4E
58.5
.277
.2770
-f-.ooi9
4521
5302
78
79
0. 9E
58.2
.279
.2790
4-. 0045
4500
5295
79
80
1.6E
58.1
. 2G0
.2800
+.0078
4500
5298
80
81
1.8E
58.2
.282
.2820
+.0087
4549
5352
81
82
2. 2E
58.0
.282
.2817
+.0107
4512
5321
82
83
2.6E
57-9
.283
.2827
+.0127
451 X
5326
83
84
3.1E
57-7
.285
.2847
+•0154
4509
5332
84
85
3-5H
57.6
.286
.2854
+.0174
4507
5337
85
86
3-9E
57-4
.286
•2854
+.0194
4473
5308
86
87
4.3E
57-2
.287
.2861
+.0215
4454
5298
87
88
4-7E
570
.288
.2871
+.0236
4435
5288
88
89
5.1E
56.9
.289
.2878
+.0257
4433
5292
89
90
5.5E
56.8
.289
.2876
+.0277
4416
5277
90
91
^•^S
56.7
.290
.2886
+.0299
4414
5281
91
92
6.3E
56.5
.291
.2893
+.03^0
4397
5273
92
93
6. 6E
56.2
•293
.2909
+. 0337
4377
5268
93
94
7.0E
55.8
.295
.2929
+.0360
4339
5248
94
95
7.4E
55-6
.296
•2936
+.0382
4322
5239
95
96
r^g
55.5
.297
.2943
+.0398
4321
5245
96
97
8.0E
55-5
•297
.2940
-1-0413
4321
5245
97
98
8.4E
55.3
.298
•2947
+.0435
4303
5236
98
99
8.7E
54.9
. 298
.2944
+.0450
4241
5182
99
100
9.0E
54-7
.298
.2944
+.0465
4208
5158
100
lOI
9.5 E
54.7
.299
.2948
+• 0493
4222
5176
lOI
102
9-7E
54-5
.299
•2948
+.0502
4192
5149
102
103
9-9E
54-3
.301
•2965
-J-.0518
4190
5159
103
104
10. I E
54.2
.301
. 2962
-f.0527
4175
5147
104
105
10. 2 E
53.9
.300
.2952
+ 0531
4113
5091
105
106
10. 4 E
53-7
.301
. 2962
+.0545
4097
5084
106
107
10.6 E
53-5
.301
•2959
-I-.0554
4067
5060
107
108
10.9 E
53.4
.302
• . 2966
+ 0571
4065
5065
108
109
II. 2 E
53.3
.302
.2963
-f.0586
4053
5052
109
no
11.4 E
53-1
.303
.2969
+.0600
4036
5048
no
III
. II. 6E
52.8
.304
•2979
4-. 061 1
4004
5028
III
112
II. 8E
52.7
.306
.2996
+.0624
4018
5049
112
"3
II. 8E
52.8
.306
.2996
+.0624
4030
5061
113
114
II. 9E
52.7
•307
.3006
+.0632
4031
5066
114
"5
12.0 E
52.6
.306
.2993
+-0636
4002
5037
115
116
12. I E
52.2
•304
•2973
+.0638
3919
4961
116
"7
12. 2 E
516
.302
•2951
+.0637
381 1
4862
"7
118
12. 4 E
51-4
.301
.2941
+.0647
3772
4825
118
119
12.5 E
51-2
.299
.2918
-f.0646
3720
4772
119
120
12. 6E
51.0
. 298
.2908
-I-.0650
3680
4735
120
121
12.7 E
50.8
.297
.2899
+.0653
3641
4699
121
53819—08-
I30
MAGNETIC TABLES AND CHARTS FOR 1905.
Table V. — The magnetic elements and magnetic components for each degree of latitude and longitude on
January J, 1903^ for North America, from 17^ N. to 49° N. — Continued.
LATITUDE 28*> N
Lon«itude W
D
I
H
X
Y
z
F
Longitude W
71
3.0W
59.8
.264
• . 2637
-0137
.4536
.5248
71
72
2.6W
59.8
.266
.2657
— .0120
.4570
.5288
72
73
2.3W
59.9
.266
.2657
— .0106
.4588
■5304
73
74
1.9W
59.9
.267
.2667
-.0088
.4606
.5324
74
75
1.6W
59-9
.268
.2680
-.0075
4623
.5344
75
76
I.I W
59-9
.269
. 2690
— .0051
4640
•5364
76
77
0.6W
59-9
.271
. 2710
— .0027
4675
■5404
77
78
0.1 W
59.7
.272
.2720
— .0005
4654
•5391
78
79
0.4E
59-3
•273
.2730
+ .0019
4597
.5348
79
80
0.9E
59-3
.276
. 2760
■f.0044
4648
.5407
80
81
2.0E
59-3
.277
.2767
+ .0097
4665
•5426
81
82
1.8E
59-
.277
.2770
+.0086
4609
.5379
82
83
2.3E
59- I
.281
.2807
+ .0112
4696
.5471
83
84
3 oE
59.0
.280
•2797
+ .0146
4659
.5438
84
.85
3.4E
58.7
.281
.2804
• +.0166
4622
•5409
85
86
3-8E
58.6
.282
. 2814
+.0186
4619
.5412
86
87
4. 2E
58.4
.283
. 2822
-f.0207
4599
5400
87
88
4.6E
58.2
.284
.2831
+ .0227
4581
5390
88
89
50E
58.0
.285
.2839
+. 0248
4560
5378
89
90
5.4H
57.9
.285
.2839
+ .0268
4543
5364
90
91
5-9E
57.9
.286
.2846
+.0295
4559
5383
91
92
6.3H
57.6
.287
.2853
+.0316
4523
5355
92
93
6.7E
57.4
.289
.2870
+. 0338
4520
5364
93
94
7-^1
57.2
.290
.2877
+ .0360
4501
5353
94
95
7.4E
57-
.291
.2887
+ 0375
4481.
5343
95
96
7.8E
56.9
.292
.2894
+.0397
4479
5347
96
97
8. 2E
56.8
.291
.2881
+ .0416
4447
5314
97
98
8.5E
56.6
.292
.2888
+ .0432
4430
5306
98
99
8.8E
56.2
.294
.2905
+ .0450
4392
5286
99
100
9 5E
56.0
.294
.2899
+ .0485
4360
5257
100
lOI
10. oE
56.0
.295
. 2906
+ .0513
4375
5275
lOI
102
10. 1 E
55.7
.296
•2913
+.0518
4339
5254
102
103
10.2 E
55-5
.296
•2913
+ .0524
4307
5227
103
104
10. 3 E
55.2
.296
.2913
+ .0530
4259
5186
104
105
10. 4 E
55-1
.296
.2913
+. 0536
4242
5174
105
106
10. 6 E
55.0
.296
. 2910
+ 0545
4227
5159
106
107
10. 8 E
54-9
.297
.2917
+. 0555
4226
5165
107
108
II. oE
54.7
. . 297
.2917
+. 0567
4194
5141
108
109
II. 4E
54.4
.298
. 2920
+.0590
4163
5120
109
110
II. 7E
54- I
.299
•2927
+ .0607
4129
5098
no
III
12. oE
53.9
.299
.2924
+ .0622
4099
5074
III
112
12.2 E
53.7
.300
.2931
+.0633
4083
5067
112
"3
12.2 E
54-
.300
•2931
+ .0633
4128
5103
"3
114
12.3 E
54.3
.303
. 2960
-f.0645
4218
5193
114
"5
12. 3 E
53.7
.303
. 2960
+.0645
4124
5118
115
116
12. 5E
53- I
.301
.2938
+ .0650
4009
5015
116
"7
12. 6 E
52.8
.298
.2908
+ .0650
3925
4929
117
118
12. 7 E
53-
•297
.2899
-f.o653
3941
4936
118
119
12. 8 E
52.9
.296
.2886
+ .0657
3913
4908
119
120
12. 9E
52.6
•295
.2876
+ .0658
3859
4856
120
121
13- 1 E
52.3
•294
. 2864
+ .0667
3804
4807
121
LATITUDE 29* N.
j
70
4.0 W
60.7
.257
■2565
— .0180 1
4580
5251
70
71
3.6W
60.8
•259
.2585
— .0163
4634
5310
71
72
3.2 w
60.8
.260
•2595
— .0146
4651
5330
72
73
2.9 w
60.8
.261
. 2607
-.0133
4669
5350
73
74
2.6W
60. 9
.262
. 2617
— .0118
4708
5387
74
75
2.2 W
61.0
.262
. 2617
— .0100
4726
5405
75
76
1.7 W
61. I
.263
.2630
-.0079
4766
5441
76
77
I.I W
61. I
.264
. 2640
— .0050
4784
5462
77
78
0.6 W
60.9
.266
.2660
— .0027
4780
5469
78
79
0.1 W
60.6
.267
. 2670
— .0005
4739
5439
79
80
0.5 E
60.2
.269
.2690
+.0024
4697
5412
So
81
1.3E
60.2
.270
.2700
+.0062 1
4714
5432
81
MAGNETIC ELEMENTS AND COMPONENTS.
131
Table V. — The magnetic elements and magnetic components for each degree of latitude and longitude on
January i, 1903, for North America^ from 17^ N. to 49® N. — Continued.
LATITUDE 29° N.— Continued.
Lonsitude W
D
I
H
X
Y
z
F
Longitude W
82
I.8E
60.2
.272
•
. 2720
+ .0084
4749
5473
82
83
2.4E
60.1
•274
.2737
+ .OII5
4768
5496
83
84
2.9E
60.0
•274
• 2737
-I-.OI40
4746
5480
84
85
3.3E
59-8
.276
.2754
4-. 0160
4742
5487
85
86
3.7E
59-6
.277
. 2764
+.0180
4720
5474
86
87
4- 1 E
59-4
.278
.2772
-f.0200
4701
5460
87
88
4.5 E
59-2
.280
.2792
+.0218
4698
5468
88
89
4.9E
59
.281
.2799
+.0239
4676
5457
89
90
5.4E
58.9
.281
.2799
+.0264
4659
5440
90
91
5.8E
58.9
.282
.2806
+.0285
4676
5460
91
92
6.3E
58.7
.283
.2813
4-. 031 1
4655
5448
92
93
6.7E
58.6
.283
.2810
-f.0331
4636
5431
93
94
7.1E
58.5
.284
.2817
+.0352
4635
5436
94
95
7.6E
58.2
.286
.2834
4-. 0378
4613
5428
95
96
8.0E
58.2
.286
.2831
4-. 0398
4613
5428
96
97
8.2E
58.0
.286
.2831
4-0409
4576
5397
97
98
8.6E
57.6
.287
.2838
4-0430
4523
5355
98
99
8.9E
57-4
.289
.2855
4-. 0448
4520
5364
99
100
10. oE
57.2
.289
.2847
4-. 0503
4485
5335
100
101
10. oE
56.9
.291
.2866
4-. 0506
4464
5328
lOI
102
lo. I E
56.7
.290
.2854
4-. 0508
4414
5281
102
103
10. 3 E
56.7
.291
.2863
4-. 052 1
4429
5299
103
104
10.5 E
56.4
.291
.2861
+ 0530
4380
5258
104
105
10. 7 E
56.2
.292
.2870
+.0543
4362
5250
105
106
10. 8 E
56.2
.292
.2867
4-. 0546
4362
5250
io6
107
II. oE
56.0
.292
.2867
• 4-. 0558
4330
5221
107
108
II. 2 E
55-8
.293
.2874
+.0568
4310
5212
108
109
II. 6E
55-6
.294
.2881
+.0591
4292
5204
109
no
II. 9E
55-5
.294
.2878
4-. 0606
.4278
.5192
no
III
12.2 E
55.4
.294
.2872
4-. 0620
.4263
.5177
III
112
12. 5 E
55-2
•294
.2869
4-. 0635
.4231
.5151
112
"3
12. 6E
55.0
•295
.2879
■ 4-. 0643
■4213
.5142
"3
114
12. 6E
54.9
.297
.2899
4-. 0647
.4226
.5165
114
"5
12. 7 E
54-8
.297
.2899
4-. 0653
.4211
.5153
"5
116
12. 8E
54-
.296
.2886
4". 0657
■4073
•5035
116
117
12. 9E
53.9
.294
.2866
4-. 0656
.4031
•4989
"7
118
13. oE
54- I
.292
.2844
4-. 0657
.4033
.4979
118
119
13.2 E
53-9
.292
.2844
4-. 0666
.4003
•4955
119
120
13- 3 E
53-7
.291
.2831
4-. 0669
■3961
•4915
120
121
13- 5 E
53-5
.290
1
.2819
4-. 0676
1
•3918
.4875
121
LATITUDE 30^ N.
.70
4.5 w
61.9
•252
.2512
-.0197
4720
5350
70
71
4. 2 w
61.9
.253
.2522
— .0185
4739
5371
71
72
3.8W
61.9
.254
.2535
-.0168
4757
5392
72
73
3.4 w
62.0
.255
•2545
— .0150
4797
5432
73
74
3. 1 w
62.0
.256
.2557
-.0138
4815
5453
74
75
2. 6 W
62.1
.256
•2557
— .0115
4836
5471
75
76
2.2 W
62.2
.257
.2567
— .0098
4875
5510
76
77
1.6W
62.2
.258
.2580
— .0072
4894
5532
77
78
i.oW
62. I
.259
.2590
-.0044
4893
5535
78
79
0.5 w
62.0
.261
.2610
— .0023
4909
5559
79
80
0. 2 E
61.6
.262
. 2620
4-. 0008
4844
5507
80
81
0.9E
61.4
.264
. 2640
4-. 0042
4842
5515
81
82
2.0E
61.3
.266
.2657
4-. 0093
4860
5538
82
83
1.9E
61.3
.268
.2677
4-. 0088
4896
5580
83
84
2.6E
61. I
.269
.2687
-I-.0121
4874
5566
84
85
3.3E
60. 9
.270
.2695
4-. 0157
4852
5551
85
86
3-8E
60.8
.272
■2715
4-. 0180
4866
5576
86
87
4-2 E
60.6
•273
.2722
4-0199
4846
5561
87
88
4.6E
60. 4
■273
.2722
4-. 0218
4805
5528
88
89
5.1E
60.2
•274
.2729
4-. 0244
4784
5513
89
90
5.5E
60.2
.276
.2746
4-0265
4819
5553
90
91
5-9E
60.0
.276
.2746
4-. 0284
4780
5520
91
92
6.3E
59-8
•277
1 • 2753
4-. 0305
4759
5507
92
132
MAGNETIC TABLES AND CHARTS FOR 1905.
Table V. — The magnetic elements and magnetic components for each degree of latittide and longitvde on
January J, 1905, for North America, from 77° N. to 49° N, — Continued.
LATITUDE 30° N.— Continued.
Longitude W
D
I
H
X
Y
Z
^
Longitude W
93
6.8E
59-8
•277
.2751
+ 0327
4759
•5507
93
94
7.3E
59-7
.278
.2758
+ 0353
4757
.5510
94
95
7.8E
59-5
.279
• 2765
+ .0379
4737
.5496
95
96
8.0E
59-3
.280
.2772
-f.0389
4715
.5485
96
97
8.0E
59.2
.281
.2782
-I-.0391
4715
.5488
97
98
8.5E
58.8
.282
.2789
-f.0417
4656
•5443
98
99
8.9E
58.8
.283
.2796
+ 0439
4672
.5462
99
100
9.2 E
58.5
.283
• 2793
+ 0453
4619
.5417
100
lOI
9.6E
58.2
.285
.2810
+ .0476
4597
•5409
lOI
102
10. oE
57-9
.^85
.2807
+.0496
4543
•5364
102
103
10.4 E
57-9
.286
. 2814
+ .0518
4559
■5383
103
104
10. 8 E
57.7
.286
.2809
+ 0535
4525
.5351
104
105
10.9 E
57-2
.287
.2818
+ 0542
4454
.5298
105
106
II. oE
57- I
.287
.2818
+.0548
4437
.5284
106
107
II. 4 E
57-
.288
. 2822
+ .0570
4435
.5288
107
108
II. 6 E
56.8
.288
• .2822
+ .0579
4401
•5259
108
109
II. 8E
56.7
.289
. 2829
+ .0590
4399
.5263
109 -
no
12. oE
56.5
.289
.2826
+ .0601
4367
•5237
no
III
12.4E
56.4
.288
.2814
-f.0619
4334
.5204
III
112
12. 8 E
56.4
.288
.2808
+ .0639
4334
•5204
112
113
12. 9E
56.2
.289
.2818
-h.0644
4318
.5196
"3
H4
13- oH
56.0
.290
.2825
-f.0652
4301
.5185
114
115
13- oE
55-6
.291
.2834
+ .0655
4249
.5151
"5
116
13- 1 E
55-2
.291
.2834
+.0661
4188
.5098
116
117
13. 3 E
55- I
.289
.2812
-f.0665
4141
.5052
"7
118
13. 4 E
55-
.288
< . 2802
-f.0668
4"3
.5020
118
119
13. 6 E
55.0
.287
.2790
+ .0674
4098
.5002
119
120
13- 8 E
54-8
.287
.2787
-f.0686
4070
.4979
120
121
14- oE
54.6
.286
.2774
+ .0692
4024
.4936
121
122
14- 1 E
54-5
.286
..774
+ .0698
4010
•4925
122
LATITUDE 31° N.
1
70
5.0 W
71
4.6W
72
4.2 W
73
3.8W
74
3.5W
75
3. 1 w
76
2.6W
77
2.1 W
78
1.4W
79
0.8W
80
0.1 W
81
0. 7E
82
1.3E
83
1.8E
84
2.3E
85
30E
86
3.6E
87
4.0E
88
4.4E
89
50E
90
5.4E
91
5.9E
92
6.5 E
93
7.0E
94
7.5 E
95
7.8E
96
8.2E
97
8.4E
98
8.7E
99
9. 2 E
100
9-3 E 1
lOI
9-^S
102
10. 3 E '
103
10. 9 E
63.0
63.0
63.0
63.1
63.1
63.1
63- I
63.1
63.0
62.8
62.6
62. 4
62. 2
62.1
62.0
62. o
61.8
61.8
61.4
61.4
61.3
61. 2
61. I
60.9
60.6
60.6
60.4
60. 2
60. 2
59-9
59.6
59.5
59.4
59-2
. 246
.247
.248
■249
.250
■251
.252
.253
.254
■255
.256
.258
. 260
.261
. 262
.263
.265 I
.266
.268
.268
. 269
. 269
. 272
.271
. 272
■274
.275
.276
. 276
.278
.277
.278
.279
.280
1
2450
-.0214
4829
5419
70
2463
—.0198 !
4849
5441
71
2473
—.0181 1
4868
5463
72
2485
-.0164 1
4908
5503
73
2495
-..0152
4928
5525
74
2507
—.0136
4947
5547
75
2517
—.0113
4967
5569
76
2527
-.0094
4987
5591
77
2540
—.0061
4986
5596
78
2550
—.0036
4962
5579
79
2560
—.0005
4938
5563
80
2580
-f.0031
4936
5568
81
2600
+.0060
4932
5574
82
2610
+.0081
4930
5578
83
2617
-f.0105
4928
5581
84
2627
+.0137
4947
5602
85
2645
-I--0167
4942
5607
86
2655
+.0186
4961
5629
87
2672
-f .0206
4915
5599
88
2669
-f.0233
4915
5599
89
2679
+.0253
4915
5601
90
2677
+.0277
4893
5584
91
2704
+.0307
4929
5628
92
2691
+ 0331
4870
5572
93
2696
+.0356
4828
5541
94
2715
+ 0373
4864
5581
95
2722
+ 0393
4840
5568
96
2730
+ 0403
4819
5553
97
2727
+ .0417
4819
5553
98
2744
+ 0445
4796
5543
99
2734
+.0449
4720
5474
100
2738
+ 0473
4720
5477
lOI
2745
-h.0499
4718
5480
102
2750
+.0529
4698
5468
103
MAGNETIC ELEMENTS AND COMPONENTS.
133
Table V. — The magnetic elements and magnetic components for each degree of latitude and longitude on
January j, 1903, for North America, from 17^ N. to 49° N.— Continued.
LATITUDE 31° N.— Continued.
Longitude W
D
I
H
X
Y
z
^
Lonsitude W
104
II. I E
59.0
.281
.2757
+• 0542
46^76
.5457
104
105
11. 3E
58.7
.^82
.2766
+ .0553
4639
.5428
105
106
II. 5 E
58.6
.281
.2754
+ 0559
4603
•5392
106
107
II. 7 E
58.4
.282
. 2761
+ 0572
4582
.5381
107
108
12. 1 E
58.1
.282
.2758
+ .0592
4532
. -5335
108
109
12.2 E
57.9
.283
.2765
+.0597
45"
.5326
109
no
12. 4E
57-7
.284
.2775
-f.o6ii
4493
•5314
no
III
12.7 E
57.6
.283
. 2762
+.0623
4460
.5281
III
112
130E
57-4
.284
.2766
-f.0639
4442
.5271
112
"3
13- 3 E
57-3
.284
.2763
+.0653
4425
.5257
113
114
13. 4 E
57.0
.285
•2773
+.0661
4389
.5233
114
115
13. 4 E
56.7
.285
.2773
+.0661
4338
.5190
115
116
13- 5 E
56.6
.285
.2770
+.0664
4323
•5178
116
117
13- 6 E
56.3
.284
. 2760
+.0667
4257
.5118
117
118
13. 8 E
56.1
.283
.2748
+.0676 ■
421 1
.5074
118
119
14- oE
56.1
.282
.2735
-f.0682
4196
•5056
119
120
14. 2 E
56.0
.282
.2733
+.0691
4182
.5042
120
121
14. 4 E
55-7
.282
•2733
+.0702
4134
.5006
121
122
14. 4 E
55.6
.282
■2733
+.0702
4117
.4991
122
LATITUDE 32<> N.
69
6.0W
64.0
.238
.2368
— .0250
•4879
•5429
69
70
5.6W
64.1
.239
.2378
-.0234
.4921
.5471
70
71
5. 1 w
64.1
. 240
.2390
— .0214
.4942
•5494
71
72
4.7W
64.1
■242
.2413
— .0198
.4983
.5540
72
73
4.3W
64.1
.243
.2423
— .0182
5003
.5562
73
74
3.9W
64.1
.244
•2435
-.0166
5024
.5585
74
75
3.6W
64.1
•245
.2445
-0154
5045
.5608
75
76
3. 1 w
64.0
.246
.2458
— 0133
5043
.5611
76
77
2.5W
63- 9
.248
.2478
— .0109
5062
•5637
77
78
1.7 w
63.8
.249
.2490
— 0075
5060
.5640
78
79
0.9 w
63.6
•251
.2510
— .0040
5055
•5645
79
80
0.3W
63.5
.252
.2520
—.0013
5055
.5647
80
81
0.4E
63.3
•253
.2530
-f.0018
5030
.5632
81
82
i.iE
63.2
.255
•2550
+.0048
5049
.5656
82
83
1.6E
63.4
•255
.2550
+.0071
5092
.5694
83
84
2.2E
63.2
•255
.2547
+.0097
5049
.5656
84
85
2.6E
63.0
.257
.2567
-f.oii6
5045
.5662
85
86
3.2E
62.8
.258
.2575
+.0144
5021
.5645
86
87
3.3E
62.6
.261
.2605
4-.OI5I
5035
•5672
87
88
4.2E
62.5
.262
. 2612
+.0191
5033
•5675
88
89
50E
62.6
.263
. 2619
-I-.0229
5073
•5715
89
90
5.7E
62.5
.263
.2617
+.0260
5052
•5697
90
91
6.1 E
62.3
.264
. 2624
4- .0280
5029
.5679
91
92
6.4 E
62.2
.265
.2634
+.0297
5027
.5682
92
93
6.8E
61.9
.265
.2631
+.0313
4963
.5626
93
94
7.5E
61.7
.266
.2636
+..0348
4940
.5610
94
95
7.9E
61.6
.268
.2656
+.0367
4955
•5633
95
96
.8. I E
61.5
.269
.2663
4-. 0379
4955
.5638
96
97
8.5E
61.2
.270
.2670
-f.0400
491 1
.5605
97
98
8.9E
61.2
. 270
.2668
+.0418
491 1
•5605
98
99
9.4E
61. 1
.271
.2675
+.0442
491 1
.5607
99
100
9.9 E
60.8
.272
•2679
+.0468
4866
•5576
100
lOI
10. 3 E
60.6
.272
.2676
+.0487
4828
•5541
lOI
102
10.7 E
60.5
•272
.2674
-h.0506
4806
•5524
102
103
II. I E
60.2
.274
.2688
+ 0529
4784
•5513
103
104
II. 3E
59-8
.276
.2708
+ 0541
4742
.5487
104
105
II. 7E
59.8
.276
. 2702
-f.0560
4742
•5487
105
106
II. 9E
59-8
.276
. 2702
4-.0569
4742
.5487
106
107
12. 1 E
59-5
.276
.2699
+.0580
4686
•5437
107
108
12. I E
59-2
•277
.2709
+.0582
4643
•5410
108
109
12. 7 E
59- I
.278
.2713
+.0612
4645
.5413
109
no
12. 9E
58.8
.279
. 2720
+.0622
4606
•5385
no
III
13- 1 E
58.8
.278
. 2708
+.0631
4590
•5365
in
112
13.4E
58.5
.279
.2715
-f.0647
4553
.5340
112
113
13. 7 E
58.3
.279
.2712
+.0661
4517
.5309
113
134
MAGNETIC TABLES AND CHARTS FOR 1905.
Table V. — The magnetic elements and magnetic components for each degree of latitude and longittide on
January i, 1903, for North America, from iy° N. to 49® N.— -Continued.
LATITUDE 32^* N.— Continued.
Longitude W
P
I
H
X
Y
Z
F
Longitude W
114
6
13. 7 B
58.3
•279
. 2712
+ .0661
•4517
.5309
114
"5
13. 8 E
58.0
.279
.2709
+ .0667
.4464
.5265
"5
116
13. 8 E
57-7
.278
.2699
+ .0664
.4398
.5201
116
"7
14. oE
57-6
.279
.2706
+ .0675
.4397
.5206
"7
118
14- 2 E
57-2
.278
.2694
-f.0681
.4315
•5132
118
119
14. 4 E
57- I
.278
.2694
+ .0692
.4298
.5"8
119
120
14. 6 E
57.1
.278
. 2691
-f.0701
.4298
.5"8
120
121
14. 6 E
56.8
.278
. 2691
-f.0701
.4248
.5076
121
122
14- 6 E
56.6
.278
. 2691
+ .0701
.4217
•5051
122
LATITUDE 33^ N.
69
6.8W
65.0
.232
•2304
70
6.4W
65.0
.233
.2316
71
5.8W
65.0
•234
.2328
72
5.2 W
65.0
■235
.2341
73
4.8W
64.9
•237
.2361
74
4.4 w
64.9
.238
•2373
75
4.0W
65.0
.239
.2385
76
3 5W
64.9
.241
■2405
77
2.8W
64.8
.242
.2418
78
2.0W
64.7
.243
. 2428
79
I.I W
64.6
.244
.2440
80
0.4W
64.6
•245
.2450
81
0.3E
64.6
.246
.2460
82
0.9E
64.4
.247
.2470
83
2.0E
64.2
.248
.2478
84
2.0E
64.0
.248
.2478
85
2.3E
64.0
•251
•2507
86
2.7E
63- 9
.251
.2507
87
3.2E
64.1
.254
•2535
88
4.4E
63- 9
•255
•2542
89
5.1E
63.7
.256
•2550
90
5.6E
635
•257
.2557
91
6. I E
63.3
.257
•2555
92
6.5E
63.1
.257
.. 2555
93
6.9E
63.0
.259
•2572
94
7.3E
62.8
•259
.2569
95
7.7E
62.7
.262
.2596
96
8. 2E
62.6
.263
. 2604
97
8.9E
62.4
.264
.2608
98
9.3E
62.3
.264
.2606
99
9.7E
62.1
.264
.2603
100
10. 1 E
62.0
.266
.2617
lOI
10. 4 E
61.7
.266
. 2617
102
10. 6 E
61.7
.267
■ 2625
103
10.9 E
61.4
.268
.2632
104
II. 5E
61.2
.269
.2636
105
II. 8E
61.0
.270
.2643
106
12.2 E
60.6
.271
.2648
107
12. 6E
60.4
.270
.2635
108
12. 8E
60.2
.271
.2642
109
12. 8 E
60.2
.271
. 2642
no
13- oE
59-8
.273
•2659
III
'^•5i
59-7
•274
.2663
112
13- 8 E
59-5
.274
.2661
113
14.0 E
59-2
■274
.2658
114
14. 1 E
59-2
•274
.2658
"5
14- 2 E
58.9
.274
•2655
116
14- 3 E
58.7
•274
.2655
117
14. 6 E
59.0
•274
.2652
118
14. 7 E
58.0
.274
.2650
119
14. 9 E
58.0
•274
•2647
120
15- oE
58.1
.274
.2647
121
14. 9 E
57.8
.274
■2647
122
14. 9 E
57-7
•274
.2647
123
14. 9 E
57.6
.274
.2647
—.0274
4976
5489
69
-.0259
4998
5513
70
— .0236
5019
5536
71
—.0214
5041
5560
72
-.0199
5060
55«6
73
— .0183
5081
5610
74
— .0167
5126
5655
75
-.0147
5145
5680
76
— .0119
5142
5685
77
-.0085
5142
5686
78
—.0046
5139
5688
79
—.0017
5160
57"
80
-f .0012
5181
5734
81
+.0040
5155
5716
82
+.0087
5131
5699
83
+.0087
5084
5657
84
-f.OIOO
5146
5725
85
, +.OII8
5123
5705
86
+.0142
5230
5814
87
+.0196
5205
5796
88
+.0228
5179
5778
89
+.0252
5155
5759
90
+.0272
5109
5721
91
+.0290
5065
5680
92
+.031 1
5084
5706
93
+.0329
5040
5667
94
+.0351
5075
5712
95
+.0376
5073
5715
96
+.0409
5050
5697
97
+.0428
5029
5679
98
+•0444
4987
5642
99
+.0466
.5004
5666
100
; +.0481
4940
5610
lOI
+.0491
.4958
5631
102
+.0507
4915
5599
103
' +• 0535
4893
5584
104
+. 0554
4871
5570
105
+•0572
4810
5520
106
+. 0589 1
4752
5468
107
4-0602
4732
5453
108
4-. 0602
4732
5453
109
+.0614'
4690
5427
no
1 +.0638
.4688
5431
III
1 +.0655 i
.4652
5398
112
1 +.0663
.4598
.5351
113
; +.0669 ;
•4598
.5351
114
+.0671
•4543
.5305
115
4-. 0677
•4507
•5274
116
4-.0690
•4559
•5321
117
4-. 0696
.4384
.5170
118
4-. 0704
•4384
.5170
119
4-. 0710
•4403
.5184
120
4-. 0704
•4351
.5143
121
4-. 0704
•4335
•5127
122
4-. 0704
.4318
■5113
123
MAGNETIC ELEMENTS AND COMPONENTS.
135
Table V. — The magnetic elements and m^agnetic components for each degree of latitude and longitude on
January i, 1905, for North America, from I'f N. to 49® N. — Continued.
LATITUDE 34** N.
Longitude W
D
I
H
X
Y
Z
F
Loiwtude W
68
8.0W
66.0
.224
.2218
— .0311
.5031
5508
68
69
7.6W
66.0
.225
.2230
-.0297
.5054
5533
69
70
7. I w
66.0
.226
.2242
— .0280
.5076
5557
70
71
6.5W
66.0
.227
.2256
-0257
.5098
5582
71
72
5.9W
66.0
.229
.2279
— .0236
•5143
5631
72
73
5.2 w
66.0
.229
. 2281
— .0208
.5143
5631
73
74
4.8W
66.0
.230
. 2291
-.0193
.5166
5656
74
75
^^5^r
66.0
.232
.2313
-.0179
.5211
5705
75
76
3.8W
66.0
.233
• 2325
-.0154
•5233
5729
76
77
30W
66.0
.235
• 2348
— .0122
.5278
5779
77
78
2.1 W
65.8
.236
■ 2358
-.0087
•5251
5756
78
79
I.3W
65.7
.237
■ 2370
-.0055
•5250
5759
79
80
0.6W
65.7
.238
.2380
— .0024
.5272
5783
80
81
0.0
65.5
•237
• 2370
.0000
.5200
5714
81
82
0.6E
65.4
.238
.2380
+ .0024
•5198
5717
82
83
i.oE
65.1
.242
. 2420
+.0041
.5213
5748
83
84
1.9E
65.2
•243
.2428
+.0080
•5259
5793
84
85
2.4E
65.2
.244
• 2438
-f.0102
.5280
5817
85
86
2.3E
65.1
.244
.2438
+.0098
•5256
5795
86
87
3.5 E
65.0
.246
• 2455
+ 0150
.5277
5820
87
88
4.3g
64.8
•247
.2463
+ .0185
•5249
5802
88
89
4-8E
64.7
.249
.2480
-f.0209
•5269
5827
89
90
5.4E
64.5
.250
.2490
+ .0235
.5242
5808
90
91
6.0E
64- 3
.250
.2488
+. 0262
•5195
5765
91
92
6.4E
64.1
•252
• 2505
+. 0280
.5189
5768
92
93
6.8E
63.8
•254
.2522
+ .0300
.5161
5753
93
94
7.3E
63.9
^ .254
. 2520
+ 0323
.5184
5773
94
95
7.7E
63.8
.256
.2537
+ .0343
.5202
5798
95
96
8.3E
63.7
•257
• 2544
+ . 0370
•5199
5800
96
97
9.0E
63.5
.258
• 2549
-f . 0402
.5175
5782
97
98
9.5E
63. 4
.258
.2544
-f.0426
•5152
5761
98
99
9.8E
63.1
.258
.2541
+ 0439
.5085
5702
99
100
10. 3 E
62.8
.260
.2558
+ .0465
.3060
5689
ICX>
lOI
10. 6 E
62.7
.260
• 2556
+ .0478
.5036
5668
lOI
102
10.8 E
62.6
.26.2
.2573
-f.0490
•5054
5693
102
103
II. 2 E
62.6
.260
.2551
+ . 0504
.5015
5650
103
104
II. 8E
62.3
.263
■ 2575
+ •0537
.5010
5657
104
105
12. 3E
61.9
.264
.2579
+. 0562
.4945
5605
105
106
12. 6E
61.7
.264
.2577
+. 0576
.4902
5568
106
107
12. 9 E
61.5
.265
.2584
+ .0591
.4881
5554
107
108
13- 2 E
61.4
.266
• 2591
-f.0606
.4878
5557
108
109
13. 4 E
61.3
.266
.2588
+.0617
.4860
5538
109
no
13. 5 E
61. 1
.266
.2586
+.0620
.4820
5504
no
III
13- 7 E
60. 9
.268
.2605
+ .0635
.4816
5510
III
112
13. 9 E
60.5
.269
.2612
+ .0646
•4753
5463
112
"3
14- 1 E
60.4
.269
. 2609
+ .0656
•4734
5447
"3
114
14. 3 E
60.3
.268
• 2597
+ .0662
.4698
5408
114
"5
14- 5 E
60.1
.268
• 2594
+.0670
.4663
5376
"5
116
14. 7 E
59-7
.270
. 26II
-f.0686
.4622
5351
116
"7
14. 9 E
59-7
.270
.2608
-I-.0694
.4622
5351
117
118
15. oE
59-3
. 270
.2608
+ .0699
.4547
5289
118
119
15. 3 E
59- I
.270
.2606
+.0713
•4512
5257
119
120
15- 4 E
59.0
.270
.2603
+.0718
.4493
5243
120
121
15. 4 E
58.8
.270
.2603
+.0718
.4458
r52ii
121
122
I5-4E
58.6
.270
.2603
+.0718
.4423
5181
122
123
15. 4 E
58.6
. 270
.2603
+ .0718
.4423
5181
123
LATITUDE 35° N.
68
8.9W
66.9
.218
•2154
-.0338
.5"o
5557
68
69
8.3W
67.0
.219
.2168
-■0315
.5160
5604
69
70
7.7W
67.0
. 220
. 2180
-.0295
.5183
5630
70
71
7.1 W
67.0
. 221
. 2192
-.0274
•5207
5655
71
72
6.5 w
67.0
. 222
. 2207
—.0251
.5230
5681
72
73
5.8W
67.0
.223
. 2219
—.0225
•5254
5707
73
74
5-2W
66.9
.224
.2231
—.0204
•5251
5710
74
75
4.6W
66.9
.225
.2243
—.0180
.5274
5735
75
136
MAGNETIC TABLES AND CHARTS FOR 1905.
Table V. — The magnetic elements and magnetic components for each degree of latitude and longitude on
Jantiary i, 1905 y for North Atnerica, from 17° N. to 49° N. — ^Continued.
LATITUDE 35^ N.— Continued.
Longitude W
D
I
H
X
Y
Z
F
5736
Longitude W
76
4.1 w
66.8
.226
• 2253
— .0163
5273
76
77
3.0VV
66. q
.228
. 2278
— .0119
5344
5812
77
78
2.0W
66.9
■ .228
. 2278
— .0080
5344
5812
78
79
1.8 W
66.6
.229
. 2290
— .0071
5292
5766
79
80
0.9W
66.5
.232
.2320
-0037
5336
5819
80
81
0. iW
66.3
•232
. 2320
—.0005
5285
5772
81
82
0. I W
66.2
•234
.2340
— .0005
5305
5799
82
83
0.5 E
66.2
.235
• 2350
+.002I
5327
5823
83
84
1.5E
1.8E
66.1
•237
■ 2370
+.0062
5349
5849
84
85
66.0
.240
. 2400
+ .0074
5390 '
5902
85
86
3-3E
66.2
.238
• 2375
+ .0138
5395
5898
86
87
4.0E
66. I
.238
.2375
+ .0167
5372
5874
87
88
4.3 E
66.0
.238
. 2373
+ .0178
5346
5852
88
89
5.0E
65- 9
•239
.2380
+ .0208
5344
5853
89
90
5.5E
65.6
.242
. 2408
4-0232
5334
5859
90
91
5-8E
65.5
.241
■ 2398
+ .0243
5288
5810
91
92
6.3E
65- 3
.244
.2425
+ .0268
5305
5839
92
93
6.9E
65.0
.247
• 2453
+ .0296
5298
5844
93
94
7.5 E
65.1
.248
.2458
+ .0325
5342
5890
94
95
8. 2 E
64.9
. 248
.2455
+ .0355
5295
5845
. 95
96
8.6E
64.8
•249
.2463
+ .0374
5291
5849
96
97
9.0E
64-7
.250
.2470
+ .0390
5290
5850
97
98
9.8 E
64.5
.251
.2472
+ .0427
5263
5831
98
99
10.3 E
64. I
.252
. 2480
+ .0451
5189
5768
99
100
10.5 E
63.7
.253
.2487
-J-.O460
5118
5710
100
lOI
10.8 E
63.8
.254
.2494
+ .0475-
5161
5753
lOI
102
II. 4 E
63.7
.255
.2499
+ .0505
5159
5755
I02
103
II. 6 E
63.6
•255
• 2499
+ 0513
5136
5735
103
104
12.4 E
63.0
.258
.2521
+ .0555
5065
.5684
104
105
12.6 E
62.7
.256
.2499
+ .0558
4959
5581
105
106
12.8 E
62.8
.257
.2506
-I-.O57I
^001
5623
106
107
13- 1 E
,62.6
.259
.2523
-h.0588
4996
5628
107
108
13- 3 E
62.6
.260
.2530
+ .0598
5015
5650
108
109
13- 7 E
62.5
.261
.2537
-f .0619
5014
5653
109
110
14.0 E
62.3
•259
.2512
+ .0627
4934
5571
no
III
14- oE
61.9
.262
.2541
+ .0634
4907
5562
III
112
14- E
61.6
.262
.2541
+ .0634
4844
5507
112
113
14. 4 E
61.6
.262
.2539
+ .0652
4844
5507
"3
114
14.8 E
61.4
.262
• 2534
+ .0668
4805
5473
114
115
14. 9 E
61.0
.262
.2531
+.0673
4726
5405
"5
116
15- oE
61. I
.263
.2541
+ .0681
4766
5441
116
117
15- 3 E
60.8
.264
.2548
+ .0697
4723
5412
117
118
15. 4 E
60.4
.265
.2555
+ .0705
4664
5366
118
119
15- 7 E
60.4
.265
.2552
+ .0718
4664
5366
119
120
15.9 E
60.2
.265
• 2549
+ .0726
4627
5332
120
121
15. 9 E
59.8
.266
.2559
-f.0729
4570
5288
121
122
15- 9 E
59-6
.266
.2559
+ 0729
4533
5256
122
123
15. 9 E
59.4
.265
.2549
+.0726
4481
5205
123
124
16.0 E
59-3
.265
• 2547
+.0731
4463
5191
124
LATITUDE 36° N.
68
9.6W
67.7
. 212
. 2090
-0354
5169
5586
68
69
9.1 W
67.8
•213
. 2102
-.0337
5218
5638
69
70
8.4W
67.8
.214
. 2116
—.0312
5243
5665
70
71
7.7W
67.8
.214
. 2121
—.0287
5243
5665
71
72
7.0W
67.8
•215
•2135
—.0262
5268
5691
72
73
6.3W
67.8
.216
.2147
—.0238
5292
5718
73
74
5.6W
67.9
•217
.2159
—.0213
5345
5768
74
75
4.7W
67.9
.218
•2173
-.0179
5369
5794
75
76
4.3W
67.9
.219
.2183
—.0164
5394
5821
76
77
4. I w
67.8
. 222
.2213
—.0160
5439
5876
77
78
2.3W
67.7
. 222
. 2218
—.0089
5412
5850
78
79
2.0W
67.6
. 222
.2218
—.0078
5386
5825
79
80
i.o W
67.6
.225
.2250
—.0038
5458
5904
80
81
i.oW
67.4
.225
■ 2250
—.0038
5404
5854
81
MAGNETIC ELEMENTS AND COMPONENTS.
137
Table V. — The magnetic elements and magnetic components for each degree of latitude and longitude on
January i, 1903 j for North America, from 17® N. to 49^ N. — Continued.
LATITUDE 360 N.— Continued.
Longitude W
D
I
H
X
Y
z
F
Longitude W
82
0. 3 W
67.2
.228
.2280
— .0011
• 5424
.5885
82
83
0.5 E
67.3
.229
. 2290
4- .0021
.5475
.5933
83
84
0. I W
67.1
•232
.2320
—.0005
.5491
■5962
84
85
30E
67.2
•233
.2328
+ .OI2I
.5543
.6014
85
86
3.5 E
67.0
.232
•2315
+ .0142
.5466
•5937
86
87
3.6E
66.9
•231
•2305
4-. 0146
.5415
.5888
87
88
3.9H
67.0
.230
•2295
+.0156
.5419
.5886
88
89
4-8E
66.9
.233
.2321
+.0196
.5462
.5939
89
90
5-3H
66.7
■234
•2331
+.0215
.5433
.5916
90
91
5.7E
66.6
•233
.2318
+.0231
.5385
.5867
91
92
6.6E
66.4
.236
•2346
+.0271
• 5402
.5895
92
93
6.9E
66.3
.238
•2363
+. 0286
■ 5422
.5921
93
94
7.5 E
66.2
.238
.2359
+.0312
•5395
.5898
94
95
8. 2 E
65- 9
.239
.2366
+.0342
.5344
.5853
95
96
9.0E
65.8
.241
.2381
+.0376
.5362
.5878
96
97
9.4E
65.7
. 240
.2369
+ 0391
.5316
.5832
97
98
9.9E
65.5
.244
.2403
+.0420
.5353
.5883
98
99
10.4 E
65- 4
.244
. 2401
+.0442
•5329
.5861
99
100
10.9 E
65.1
■245
.2406
+ 0463
.5277
•5819
100
lOI
II. 2 E
64.8
.246
.2413
+.0477
.5228
•5779
lOI
102
II. 7 E
64.6
.248
.2428
+.0503
.5223
•5781
102
103
12.4 E
64.6
.248
•2423
+ 0533
.5223
.5781
103
104
13-2 E
64.4
- .251
•2445
+.0572
.5238
.5808
104
105
13.7 E
64.2
.249
. 2420
+.0590
.5152
.5722
105
106
13- oE
63- 9
■251
•2445
+ 0565
.5123
.5705
106
107
13- 3 E
63.8
.252
.2452
+.0580
.5121
.5708
107
108
13. 7 E
63- 7
■251
•2437
+ 0595
.5078
•5665
108
109
14.0 E
63.6
.254
.2464
+.0615
.5116
•5712
109
no
14.4 E
63.5
•252
•2442
-I-.0627
.5055
.5647
- no
III
14.6 E
63.4
.253
.2449
+.0638
.5052
•5649
III
112
14- 7 E
62.8
.255
.2466
+.0648
.4962
•5579
112
113
15- oE
62.4
.256
.2473
+.0663
.4897
.5524
113
114
15. 4 E
62.4
•257
•2477
-h.0684
.4916
•5546
114
"5
15- 6 E
62.2
■257
.2475
+.0691
.4875
.5510
"5
116
15. 4 E
62.1
.258
.2487
+.0686
.4874
•5513
116
"7
15- 8 E
61.6
.258
. 2482
+.0702
•4770
•5423
"7
118
15. 8 E
61.3
.260
.2501
+. 0707
.4750
•5413
118
119
16.0 E
61.4
.258
.2479
+.0712
.4732
•5390
119
120
16.4 E
61.2
.261
•2503
+.0736
.4748
.5418
120
121
16.5 E
60.8
.262
•2513
+• 0744
.4687
•5371
121
122
16.5 E
60.6
.262
•2513
+ 0744
.4650
.5337
122
123
16.4 E
60.4
.261
.2503
+.0736
.4594
•5285
123
124
16. 6 E
60.3
.261
. 2500
■f.0746
.4575
.5267
124
LATITUDE 37** N.
68
10. 6 W
68.6
.206
.2025
-•0379
5257
.5646
68
69
9.9W
68.6
.207
.2039
-•0356
5283
•5674
69
70
9. I W
68.6
.208
•2053
—.0329
5308
•5701
70
71
8.2 w
68.6
. 208
•2059
-.0297
5308
•5701
71
72
7.5W
68.7
.209
. 2071
-.0274
5361
•5754
72,
73
6.8 W
68.7
.209
.2075
-.0247
5361
•5754
73'
74
6.0 W
68.9
.209
.2080
— .0219
5417
.5806
74
75
5.2 W
68.9
.209
.2082
— .0190
5417
.5806
75
76
4.5 w
68.8
. 212
.2114
— .0165
5465
.5862
76
77
4.0 w
68.6
•214
.2136
—.0150
5461
.5866
77
78
3.3W
68.6
•215
. 2146
— .0125
5487
•5893
78
79
2.8 W
68.7
•215
.2148
— .0105
5515
•5919
^
80
1.8W
68.6
.218
. 2180
-.0068
5563
•5975
81
1.3W
68.4
.216
. 2160
— .0050
5456
•5867
81
82
1.4 W
68.2
. 221
. 2210
-•0053
5525
•5952
82
83
0.8W
68.3
.219
. 2190
—.0031
5503
•5924
83
84
0.4E
68.5
. 220
. 2200
+ .0015
5586
.6002
84
85
3-oE
68.2
. 222
. 2218
+ .0115
5550
.5978
85
86
4. 2 E
68.2
.223
.2223
+.0163
5575
.6005
86
87
3.7H
68.0
•225
. 2246
+.0146 1
5568
.6005
87
138
MAGNETIC TABLES AND CHARTS FOR 1905.
Table V. — The magnetic elements and magnetic components for each degree of latitude and longitude on
Janu^ary i, 1905^ for North America, from if^ N. to 49° A^. — Continued.
LATITUDE 37° N.— Continued.
Longitude W
D
I
1
H
X
Y
z
F
Longitude W
88
4.7E
67.8
.224 ,
• 2233
+ .0184
5488
5929
88
89
5.0E
67.7
.227 1
. 2261
+ .0197
5534
5981
89
90
5.5H
67.7
.226
.2249
-f.0217
5510
5955
90
91
6. 2 E
67-5
.226
. 2246
+.0244
5456
5905
91
92
6.5E
67.3
.228
.2266
+ .0258
5451
5907
92
93
7.0E
67.2
.232
.2304
+ .0283
5519
5988
93
94
7.5E
67.2
•229
. 2269
-f.0300
5448
5910
94
95
8.7E
66.9
.232
. 2292
+ 0350
5438
5914
95
96
8.9E
66.9
•233
.2302
+.0361
5462
5939
96
97
9-4E
66.7
•234 1
• 2310
+ .0381
5433
5916
97
98
9-8E
66.5
.236
.2325
+ .0401
5428
5919
98 •
99
II. oE
66.4
.237 !
.2327
+ .0453
5425
5920
99
100
10. 9 E
66.2
.238 ,
•2337
+ 0450
5395
5898
100
lOI
II. 4E
66.0
.239
•2342
+ .0473
5368
5877
lOI
102
12. 1 E
65- 7
.240
• 2347
+. 0504
5316
5832
102
103
12.5 E
65.6
.242 1
. 2362
+ ■0523
5334
5859
103
104
13. oE
654
-243
• 2367
+.0547
5307
5837
104
105
14- 1 E
65 I
•245
• 2376
+ .0598
5277
5819
105
106
13. 6 E
64.8
.245 '
.2381
+ .0576
5206
•5755
106
107
13 7 E
64.8
.244
.2372
+ .0578
5185
.5732
107
108
14- oE
64.6
.245
•2376
+ .0593
5160
■57"
108
109
14. 6 E
64.6
•247 1
•2391
+ .0622
5202
■5758
109
no
15- 2 E
64.6
.246
• 2374
+ .0645
5181
.5734
no
III
15- 2 E
64.7
.245 '
.2364
+ .0642
5184
•5733
III
112
15. 3 E
64.1
.247 i
.2384
-f.0652
5086
5654
112
"3
15- 6 E
63.3
.250
.2408
+ .0672
4970
•5565
"3
114
16. oE
63.3
•252
.2422
+ .0696
.5010
.5610
114
"5
16. 1 E
62.9
.252
.2422
+ .0698
.4924
•5531
"5
116
16. 1 E
62.8
•252
.2422
+.0698
.4904
•5514
116
"7
16. 4 E
62.6
. 253 1
. 2426
+ 0713
4880
.5498
"7
118
I6.4E
62.2
.254 '
•2436
+.0716
4818
•5446
118
119
15. 9 E
62.2
.252 ,
.2424
+ .0690
4780
.5403
119
120
16. 3 E
62.2
.251
. 2410
+ .0705
4761
.5381
120
121
17.2 E
61.7
.254 1
. 2426
4-. 0752
.4717
.5357
121
122
16. 9 E
61.5
.257
• 2459
+.0748
.4734
.5387
122
123
16. 8 E
61.4
.256
.2450
+.0740
.4695
.5348
123
124
17. oE
1
61.2
.255 1
.2438
+.0745
.4638 .
•5294
124
LATITUDE 38* N.
67
12. oW
69.4
.201
. 1966
— .0418
5347
5712
67
68
II. 4 W
69.4
. 201
.1970
-.0398
5347
5712
68
69
10.7 w
69.5
. 202
.1986
-.0376
5404
5767
69
70
9.8 W
69.5
.202
.1990
-0343
5404
5767
70
71
8.9 W
69.5
. 202
.1996
-0313
5404
5767
71
72
8. 2 W
69.5
.203
.2010
— .0290
5430
5796
72
73
7.5W
69.6
.203
. 2012
-.0266
5459
5824
73
74
6.7 W
69.7
.203
. 2016
-.0238
5487
5850
74
75
5-8W
69.8
.203
. 2020
— .0205
5518
5879
75
76
5.3W
69.6
.206
.2052
— .0190
5539
5910
76
. 77
4.7W
69- 5
.207
. 2064
— .0170
5537
5910
77
'78
4. 2 W
69.5
.209
.2084
-•0153
5591
5967
78
79
31 w
69.5
. 207
.2068
— .0112
5537
5910
79
80
2.6W
69- 5
.208
. 2078
-.0094
5564
5938
80
81
2. I W
69- 3
.209
.2088
-.0077
5530
5913
81
82
1.4 W
69.4
. 211
.2110
— .0051
5613
5997
82
83
0. 2 E
69.4
. 212
.2120
+ .0006
5639
6025
83
84
0.3E
69.4
•213
.2130
-f.ooii
5666
6053
84
85
1.7E
69.3
.213
. 2130
+.0064
5636
6026
85
86
2.1 E
69.1
.214
.2138
+ .0079
5605
5998
86
87
3.4E
69.1
.217
.2166
+ .0128
5683
6083
.87
88
4.2E
68.8
•217
• 2163
+ .0158
5594
6000
88
89
4-4E
68.8
. 220
.2193
-I-.0169
5672 '
6083
89
90
5.2E
68.8
.218
.2171
+.0198
5620
6028
90
91
6.0E
68.6
.219
.2179
+.0230
5589
6003
91
92
6.1 E
68.4
. 222
. 2207
+•0235
5608
6030
92
MAGNETIC ELEMENTS AND COMPONENTS.
139
Table V. — The magnetic elements and magnetic components for each degree of latitude and longitude on
January j, 1903 ^ for North America, from 17^ N. to 49° N. — Continued.
LATITUDE aS^* N.— Continued.
Longitude W
D
I
H
X
Y
z
F
Lonaitudc W
93
7.3E
68.2
.223
. 2212
+ .0283
5575
6005
93
94
7-2§
ti^
.224
. 2220
+ .0307
5629
6059
94
95
8.8E
68.0
. 224
.2213
+ 0343
.5544
5979
95
96
10. E
67.7
.226
. 2226
+.0393
5510
5955
96
97
9.9E
67.6
.227
.2236
+ .0390
5507
5956
97
98
9.9E
67.5
.227
• 2236
+ .0390
5480
5932
98
99
10.5 E
67.2
.230
. 2261
+ .0419
5472
5936
99
100
II. I E
67.1
.230
. 2256
+ .0444
5444
59"
100
lOI
II. 9 E
66.8
.233
. 2281
+ .0480
5436
5914
lOI
102
12. oE
66.8
•233
.2279
+ .0485
5436
5914
102
103
12.7 E
66.6
■235
.2294
4-.O517
5431
5917
103
104
13- 2 E
66.4
.235
. 2289
+ 0536
5379
5870
104
105
13. 7 E
66.0
.238
.2313
+ .0564
5345
5852
105
106
14. 4 E
66.0
•239
. 2316
4-. 0595
5368
5877
106
107
14- 3 E
66.1
.238
.2306
+.0588
5372
5874
107
108
14- 5 E
65-5-
.241
•2333
+.0602
5288
5811
108
109
14. 8 E
65.6
.242
.2340
+.0617
5334
5859
109
no
15- 3 E
65.6
.241
. 2326
-h.0636
5312
5835
no
III
15- 7 E
67.0
.238
. 2292
+.0645
5607
6090
III
112
15. 7 E
65,0
.242
•2330
+.0656
5191
5726
112
113
16. 1 E
64.3
.246
•2364
+.0681
5112
5673
113
114
16. 3 E
64.1
.247
.2371
+.0694
5086
5654
114
"5
16. 4 E
64.0
.246
.2359
-h.0694
5043
5611
"5
116
16. 5 E
63- 9
•247
.2369
-J-.0701
5041
5614
116
"7
16. 8 E
63.6
.247
.2364
+.0714
4975
5555
117
118
17. oE
63.3
.248
•2371
+•0724
4930
5520
118
119
16. 3 E
63.2
•247
.2371
+.0694
4891
547«
119
120
16. oE
63.1
.246
.2364
+.0679
4849
5437
120
121
16. 6 E
63.1
.250
•2395
+ 0715
4928
5525
121
122
17. 7 E
62.6
■251
.2392
+.0763
4842
■5454
122
"3
I7-4E
62.4
.250
.2385
-f.0748
.4782
.5395
123
124
17. 5 E
62.2
.249
•2375
+ 0749
•4724
•5339
124
125
17. 8 E
62.0
.250
. 2380
+.0765
.4702
.5325
125
LATITUDE 39° N.
67
12. 8W
70.3
195
. 1901
-0433
5446
.5786
67
68
12.2 W
70.3
196
•1915
-.0414
5474
■5815
68
69
II. 4W
70.3
197
• 1931
-.0390
5502
•5845
69
70
10.5 W
70.3'
197
•1937
-0359
5502
•5845
70
71
9.6 W
70.3
197
. 1942
-.0329
5502
•5845
71
72
8.9W
70.3
197
• 1946
-.0305 .
5502
.5845
72
73
8.4 W
70.4
197
.1948
-.0288
5532
.5873
73
74
7.6W
70.5
197
. 1952
— .0260
5563
•5902
74
75
6.4W
70.6
198
. 1968
— .0220
5623
•5962
75
76
6. 2 W
70.4
200
. 1988
— .0216
5616
.5962
76
77
51 w
70.4
200
. 1992
— .0178
5616
.5962
77
78
4.4W
70.4
200
. 1994
-.0154
5616
.5962
78
79
3.7W
70.3
201
. 2006
—.0131
5614
■5964
79
80
3.3W
70.4
203
. 2026
— .0118
5700
.6051
80
81
2.2 w
70.3
203
. 2028
-.0077
5670
.6023
81
82
i.oW
70.3
203
. 2030
-.0035
5670
.6023
82
83
2.1 W
70.3
205
.2048
—.0076
5726
.6082
83
84
0.6E
70.2 1
205
.2050
-f .0020
5695
.6052
84
85
1.2E
70.2
206
. 2060
-I-.0043
5723
.6081
85
86
1.8E
70.2
206 .
. 2060
+ .0064
5723
.6081
86
87
2.6E
70. 1
207
.2068
+ .0093
5717
.6082
87
88
3.6E
69.9
208
.2076
-f.0131
5685
•6053
88
89
4.4 E
69.8
209
.2084
-f.oi6i
5681
•6053
89
90
5.0E
69.7
212
. 2112
+.0184
5730
.6110
90
91
5 9E
69.5
212
. 2109
+.0218
5671
.6053
91
92
6.8E
69 3
214
.2125
+ 0253
5662
.6054
92
93
7.1E
69.3
213
.2113
4-. 0264
5636
.6026
93
94
7-9E
69.2
216
.2141
-f.0296
5687
.6083
94
95
8.6 E
68.8
217
. 2146
+.0326
5594
. 6000
95
96
9-3E
68.6
219
. 2162
+ 0355
5589
.6003
96
97
10. E
68.5
221
.2177
+■0385
561 1
. 6029
97
I40
MAGNETIC TABLES AND CHARTS FOR 1905.
Table V. — The magnetic elements and magnetic components for each degree of latitude and longitude on
January J, 1903, for North America, from iy° N. to 49° N, — Continued.
LATITUDE 39« N.— Continued.
Longitude W
D
I
H
X
Y
z
F
•6957
Longitude W
98
10. 5 E
68.4
.223
. 2192
+ .0406
5633
98
99
II. oE
68.2
. 222
. 2180
+. 0424
5550
.5978
99
100
II. 3H
68.1
.224
.2197
+ 0439
.5573
.6005
100
lOI
II. 9E
67.9
'.227
. 2222
+ .0468
5591
6034
lOI
102
12. 3E
67.7
.227
. 2218
-f.0484
5534
5981
102
103
13. oE
67- 5
.228
. 2221
+ .0513
5504
5958
103
104
13. 6 E
67- 3
.228
. 2216
+ .0536
5451
5907
104
105
14. 4 E
67.2
.229
.2219
+ 0570
5448
5910
105
106
15- oE
66.8
.232
.2241
+ ,0601
5413
5888
106
107
14. 9 E
66.6
•233
.2251
+ 0599
5385
5867
107
108
14. 9 E
66.3
'233
.2251
4-. 0599
5308
5797
108
109
I5-3E
66.4
•237
.2287
-f.0626
5425
5920
109
no
15. 7 E
66.1
•237
. 2282
+.0642
5349
5849
no
III
16. 1 E
65.8
.236
.2268
+•0654
5251
5756
III
112
16. 3 E
65- 6
.238
.2285
-I-.0669
5246
5756
112
113
16. 4 E
65.3
' .239
. 2292
+.0674
5196
5719
"3
114
16. 7 E
65.1
.240
•2299
+.0689
5170
5700
114
"5
16. 8 E
65.0
.240
.2297
+.0694
5148
5678
"5
116
16. 8 E
64.8
.241
.2306
+.0696
5121
5661
116
"7
i7-oE
64.6
■242
.2314
+.0707
5097
5641
"7
118
17.4E
64.3
.242
.2309
-I-.0724
5029
5581
118
119
17.4E
64.2
.243
.2318
4". 0727
5028
5584
119
120
17.4E
64.0
.242
•2309
-I-.0724
4961
5520
120
121
18. oE
63.8
.242
.2301
+.0748
4917
5481
121
122
18. 2 E
63.5
•245
.2328
+.0764
4915
5490
122
123
18. 3 E
63.2
•245
•2325
-f.0769
4851
5434
123
124
18. 1 E
63.0
.245
•2330
+.0762
4809
5397
124
125
18. 3 E
62.8
•245
.2325
-f.0769
4768
5361
125
LATITUDE 40° N.
.
67
13. 8 W
71.0
190
1845
-•0454
5518
.5837
67
68
13.0 w
71.0
190
1851
—.0428
5518
.5837
68
69
12. I W
71.0
190
1858
-•0399
5518
.5837
69
70
II. 2 W
71.0
190
1864
-.0369
5518
.5837
70
71
10. 4 W
71.0
191
1879
-.0346
5547
.5868
71
. 72
9.7W
71.2
191
1883
—.0321
5610
.5927
72
73
9.2 W
71.3
191
1885
—.0306
5642
.5957
73
74
8.4W
71-3
191
1889
-.0279
5642
•5957
74
75
7.8 w
71.4
192
1903
— .0261
5704
.6019
75
76
6.0W
71-3
192
1910
— .020i
5672
.5988
76
77
5-9W
7 1. '3
192
1910
— .0198
5672
.5988
77
78
5.0W
71.3
193
1922
-.0168
5701
.6020
78
79
4.4W
71.2
193
1924
-.0149
5668
.5989
79
80
3.5W
71-3
193
1926
— .oii8
5701
.6020
80
81
I.I W
71.2
194
1940
-.0037
5698
.6020
81
82
1.4W
71.2
195
1950
-.0047
5727
.6051
82
83
0.4W
71.2
196
i960
—.0014
5757
.6082
83
84
0. I E
71.2
197
1970
+.0004
5786
.6113
84
85
1.2E
71. 1
199
1990
+.0042
5813
.6143
85
86
2.0E
71.0
199
1988
-f.0070
5779
.6113
86
87
2.4E
70.9
200
1998
+ .0084
5776
.6112
87
88
3.1E
70.7
202
2018
+.0109
5769
.6113
88
89
3-9E
70. 6
204
2036
+.0139
5794
.6142
89
90
5.0E
70.5
205
2042
+.0178
5789
.6142
90
91
|-7g
70- 5
205
2040
+ .0203
5789
.6142
91
92
6.7E
70.4
206
2046
+ 0241
5784
.6141
92
93
7.4E
70.3
206
2044
+.0266
5754
.6112
93
94
8.0E
76.1
208
2059
-I-.0289
5745
.6111
94
95
90E
69.8
210
2075
+.0328
5708
.6082
95
96
9-3E
69.6
209
2063
+ 0339
5620
.5996
96
97
10.2 E
69.5
212
2086
+•0375
5671
.6053
97
98
10. 6 E
69- 3
215
2113
+.0396
5689
.6082
98
99
12. I E
69.2
214
2093
-f .0449
5635
.6026
99
100
II. 9 E
69.1
216
2115
+ 0445
5657
.6054
100
lOI
12.2 E
68.8
220
2149
+ 0464
5672
.6083
lOI
MAGNETIC ELEMENTS AND COMPONENTS.
141
Table V. — The magnetic elements and magnetic components for each degree of latitude and longitude on
January i, 1903, for North America, from I'f N, to 49° iV.— Continued.
LATITUpE 40** N.— Continued.
Longitude W
D
I
H
X
Y
z
F
Longitude W
102
12. 8 E
68.6
.221
•2155
+ .0491
5640
6058
102
103
13. 5 1
!2-5
. 221
.2148
+ 0515
561 1
6029
103
104
14- oE
68.3
.222
■2153
+ .0537
5579
6005
104
105
14. 3 H
68.0
.223
.2161
+ 0551
5519
5952
105
106
14- 8 E
67.8
.223
.2156
+ .0569
5464
5903
106
107
15. 3 E
67.5
.228
. 2200
+ .0602
5504
5958
107
108
15.75
67.2
.226
.2176
+.0612
5377
5833
108
109
15. 9 H
67.2
.231
. 2222
+ .0633
5495
5962
109
no
16.2 E
67.0
.230
.2208
+ .0642
5419
5886
no
III
16. 4 E
66.7
•231
.2215
+ .0651
5364
5840
III
112
16. 7 E
66.4
.232
.2223
+ .0666
5310
5785
112
"3
16. 8 E
66.2
.232
. 2220
-+-.0670
5259
5749
"3
114
17. oE
65.8
.234
■2237
+ .0683
5206
5707
114
"5
17.4E
65.7
.234
.2232
+ .0700
5183
5686
115
116
17. 6 E
65.6
.235
. 2240
4-. 0710
5179
5689
116
"7
17. 6 E
65.4
.236
.2249
+ 0713
5154
5669
117
Z18
18. oE
65.2
•237
•2254
+ 0732
5129
5650
118
119
18. 2 E
65.1
.239
. 2270
+.0746
5148
5676
119
120
18. 3 E
64.8
.238
.2259
+.0747
5058
5591
120
121
18. 4 E
64.7
.238
.2259
+.0752
5036
5569
121
122
18. 8 E
64.4
.240
.2273
+ 0773
5009
5554
122
123
19- 1 E
64.2
. 240
.2268
+.0785
4966
5515
123
124
18. 7 E
64.0
.^40
•2273
-f.0770
4920
5474
124
125
18. 7 E
63.8
.241
.2282
+.0774
4897
5459
125
LATITUDE 41'' N.
66
15. 4 W
71.8
.184
1774
-.0489
.5597
.5892
66
67
14. 7 w
71.8
.184
1779
-.0467
.5597
.5892
67
68
14. oW
71.8
.184 .
1785
-•0445
■ 5597
.5892
68
69
13. 2 W
71.8
.184
1792
—.0420
• 5597
.5892
69
70
12.0W
71.8
.184
. 1800
-.0383
.5597
.5892
70
71
11. 3W
71.8
. 184
1805
—.0361
.5597
.5892
71
72
10.6 W
72.0
.183
1799
-. 0337
5633
.5922
72
73
10. oW
72.2
. 184
. 1812
—.0320
5732
.6019
73
74
9.0W
72.2
.183
1808
—.0285
5700
.5986
74
75
7.9W
72. 2
.185
1833
-0253
5763
.6051
75
76
7.4W
72.2
.185
•1835
-.0239
5763
.6051
76
77
6.8W
72.1
.185
.1837
—.0218
5728
.6020
77
78
5.9W
72. 2
.186
.1851
—.0192
5794
.6084
78
7^
4-5 W
72.2
.186
. 1S54
-.0145
5794
.6084
79
80
3-8W
72.2
.186
.1856
—.0123
5794
.6084
80
81
2.7W
72. 2
.187
.1868
-.0088
5825
.6117
81
82
2.2 W
72.1
.188
.1878
—.0071
5820
.6118
82
83
1.2 W
72.2
.188
.1880
-.0039
5856
.6149
83
84
0.2 W
71.9
.190
. 1900
—.0006
5814
.6116
84
85
0.5E
71.9
.192
. 1920
+.0017
5875
.6180
85
86
i.oE
71.8
.192
1920
+.0033
5841
.6148
86
87
1.9E
71.8
•193
1928
+.0064
5871
.6180
87
88
3.0H
71.6
.194
1938
+.0101
5832
.6146
88
89
4.3H
71.4
•195
1944
4-. 0146
5793
.6113
89
90
5-"g
71.4
.196
1952
+.0178
5823
.6145
90
91
6.2E
71.4
.197
1958
+.0213
5853
.6176
91
92
6.9E
71.2
.198
1966
+. 0238
5815
.6144
92
93
7.0E
71.1
.199
1976
+.0243
5813
.6143
93
94
8.0E
71. 1
.199
1970
+ 0277
5813
• 6143
94
95
9.0E
70.8
.202
1996
+.0315
5801
• 6143
95
96
10. E
70.5
.203
2000
+.0353
5733
.6082
96
97
10. oE
70.4
.205
2019
+■ 0357
5756
.6111
97
98
II. 3E
70.3
.206
2021
+. 0404
5754
.6112
98
99
12. oE
70. 2
.206
2015
'+. 0428
5723
.6081
99
100
II. 9E
69.8
. 207
2027
+. 0426
5626
.5995
100
lOI
12.0 E
69.7
.211
2064
+ 0439
5703
.6081
101
102
13. 9 E
69.6
. 210
2039
+. 0504
5647
.6025
102
103
14.0 E
69.4
. 212
2056
-f.0513
5639
.6025
103
104
14- I E
69.2
» 214 1
2076
+.0522 .
5635
.6026
104
142
MAGNETIC TABLES AND CHARTS FOR 1905.
Table V. — The magnetic elements and magnetic components for each degree of latitude and longitude on
January i, 1903, for North America, from 77° .V. to 49° N. — Continued.
LATITUDE 41** N.— Cpntinued.
Longitude W
D
I
H
X
Y
z
F
Longitude W
105
15. oH
68.9
.216
. 2087
4-. 0559
5599
6001
105
106
15.1 E
68.6
.218
. 2104
+.0569
5563
5975
106
107
15- 3 E
68.4
. 220
.2123
+.0581
5557
5975
197
108
15- 6 E
68.2
. 222
.2138
+. 0597
5550
5978
108
109
15. 9 E
68.0
. 222
.2136
-f.0608
5494
5925
109
no
16. 3 E
67.8
.223
.2141
-f.0627
5464
5903
no
III
16. BE
67.8
.224
•2144
+.0647
5488
5929
III
112
17. 1 E
67.5
.225
.2151
4-. 0662
5432
5879
112
"3
17.4 E
67.2
.226
. 2156
-f.0676
5377
5833
113
114
17. 6 E
66.9
.227
. 2163
+.0686
5321
5786
114
"5
17. 8 E
66.8
.228
.2171
+.0698
5319
5787
"5
116
18. 2 E
66.6
.230
.2185
+.0718
5315
5791
116
117
18. 2 E
66.3
.231
•2194
-f.0721
5262
5747
"7
118
18. 4 E
66.0
.231
. 2192
-h. 0730
5188
5680
118
119
18. 7 E
65.8
•233
. 2207
+.0748
5184
5683
119
120
18. 8 E
65.6
.240
•2273
+ 0773
5290
5810
120
121
19. 2 E
65. 4
.233
. 2200
+. 0767
5089
5597
121
122
19. 4 E
65.2
.235
. 2216
+.0780
5085
5602
122
123
19- 5 E
65.0
•235
. 2216
+. 0785
5041
5560
123
124
19-2 E
64.9
.236
. 2228
+.0776
5039
5563
124
125
19- 3 E
64.7
.236
. 2228
-I-.0781
4994
5522
125
126
19. 5 E
64.4
.237
•2235
+.0792
4946
5484
126
LATITUDE 42** N.
66
16. 6 W
67
16. oW
68
15. 4 w
69
14.7 w
70
13. 4 W
71
12.6 W
72
II. 7 W
73
II. I W
74
10. oW
75
9.1 W
76
8. 6 W
77
7.3W
78
6.1 W
79
4.9 w
80
4.4 w
81
. 3.9W
82
2.5W
83
1.4W
84
I.2\V
85
0. 2 E
86
1.2E
87
1.8E
88
2.8E
89
3.8E
90
4.6 E
91
5-^B
92
6.7E
93
8.0E
94
7.3E
95
9. 2 E
96
10.2 E
97
10. 6 E
98
II. 2 E
99
II 8E
100
II. 9E
lOI
13- oE
102
13- 6 E
103
14.2 E
104
14. 8 E
105
15- 1 E
io6
I5-4E
72.4
72.5
72.5
72. 6
72.7
73- o
73- o
73- o
73- I
73- o
73- o
73-2
73- I
73- o
73- o
73- o
73- o
72.8
72.8
72.8
72. 6
72.7
72.5
72.4
72.5
72.4
72. 2
72. o
71.8
71.7
71.6
71-4
71.2
71. I
70.8
70.7
70.5
70- 3
70.0
69.8
69.6
178
170^
178
I7II
177
1706
177
I7I2
177
1722
176
1718
176
1723
177
1736
176
1734
177
1747
178
1760
178
1766
178
1769
178
1773
179
1785
180
1796
179
1788
180
1800
183
1830
183
1830
183
1830
184
1840
185
1848
186
1856
186
1854
187
1861
189
1877
192
I9OI
193
I915
194
I915
195
1919
194
1907
200
1962
199
1948
202
1978
202
1967
.204
1983
205
1986
207
2002
209
2017
211
2034
-.0509
-.0491
-.047:
-.0450
—.0411
-.0384
-0357
— . 0342
—.0306
—.0280
— . 0267
—.0226
—.0189
—.0151
-.0138
—.0122
-.0079
-•0043
-.0038
+.0005
+.0038
+.0057
+.0091
+.0123
+.0149
-f.0189
4*. 0221
+.0267
+• 0245
+.0310
+• 0345
+.0357
+. 0388
-f .0406
4-. 0416
+.0454
+.0479
+.0502
+.0528
+.0543
-f.0561
561 1
.5886
66
5646
.5920
67
5614
.5887
68
5648
.5919
69
5683
•5953
70
5757
. 6019
71
5757
.6019
72
5790
.6053
73
5792
.6054
74
5790
•6053
75
5822
.6088
76
5895
.6159
77
5858
.6123
78
5822
.6088
79
5855
. 6122
80
5888
.6156
•81
5855
.6122
82
5814
.6088
83
591 1
.6189
84
59"
.6189
85
5840
. 6120
86
5908
.6188
87
5868
.6153
88
5863
.6151
89
5900
.6186
90
5894
.6184
91
5887
.6182
92
5910
.6213
93
5871
.6180
94
5867
.6179
95
5862
.6178
96
5764
.6082
97
5874
.6206
98
5813
•6143
99
5801
■6143
100
5769
.6112
lOI
5761
. 6112
102
5726
.6082
103
5686
.6053
104
5681
■6053
105
5674
.6054
106
MAGNETIC ELEMENTS AND COMPONENTS.
143
Table V. — The magnetic dements and m^agnetic components for each degree of latitude and longitude on
January i, J905, for North America, from 17° N. to 49° iV.— Continued.
LATITUDE 42** N.— Continued.
Longitude W
°
I
H
X
Y
z X
p
Longitude W
107
16. oE
69.3
.213
•2047
+.0588
5636
6026
107
108
I5-9E
69.0
.214
.2059
+.0586
5575
5971
108
109
16. 3 E
68.9
.215
. 2064
+ .0604
5573
5973
109
no
17. 2 E
68.8
.217
. 2072
+ .0642
5594
6CKX>
no
III
17. 8 E
68.7
.217
.2066
-f.0664
5566
5974
III
112
17. 8 E
68.3
.218
.2075
+ .0667
5478
5897
112
113
17. 8 E
68.1
. 220
•2094
+ .0673
5474
5898
113
114
18. 3 E
67.8
.221
2097
+.0694
5414
5850
114
"5
18. 4 E
67.7
. 222
. 2107
+.0702
5412
5850
115
116
18. 6 E
67.4
.223
.2114
+ .07II
5356
5802
116
117
18. 9 E
67.2
.224
.2119
+.0726
5329
5781
117
118
18. 8 E
66.9
.225
. 2131
+.0724
5274
5735
118
119
19. oE
66.6
.226
.2138
+ ■0737
5223 :
5691
119
120
19- 7 E
66.4
. 229
.2155
+ .0772
5242
5720
120
121
20. 4 E
66.2
.228
.2136
+. 0796
5169
5650
121
122
19. 8 E
66.0
.230
. 2164
-f . 0780
5166
5656
122
123
19. 9 E
65.8
.231
. 2171
+.0788
5140
5634
123
124
19. 6 E
65.6
.232
.2185
+.0777
5113
5617
124
125
19. 8 E
65.5
.232
.2183
+.0786
5090
5594
125
126
20.0 E
65.3
.232
.2181
+. 0793
5044
5552
126
LATITUDE 43** N.
66
17. 8 W
73-
173
1647
-.0529
5659
•59x7
66
67
17. I W
73
172
1644
— . 0506
5626
.5882
67
68
16. 3 w
73
I
172
165 1
-.0483
5661
•5917
68
69
15. 4 W
73
3
171
1648
-■ 0455
5699
.5951
69
70
14. 4 W
73
5
170
1647
-.0423
5739
.5986
70
71
13. I w
73
9
169
1646
-.0384
5856
.6094
71
72
12.2 W
73
8
170
1661
-. 0359
5851
.6093
72
73
12.2 W
73
8
170
1 661
-0359
5851
.6093
73
74
II. 3W
73
8
168
1648
-.0329
5783
.6021
74
75
10. 3 w
73
9
170
1673
-.0304
5890
.6130
75
76
9.0W
74
170
1680
— . 0265
5928
.6168
76
77
8.4W
73
9
170
1681
— .0248
5980
.6130
77
78
6.3W
73
8
171
1700
— .0188
5886
. 6129
78
79
6.0W
73
9
170
1692
—.0178
5890
.6130
79
80
5-4W
74
I
169
1683
-.0159
5934
.6168
80
81
4.4W
74
170
1695
—.0131
5928
.6168
81
82
3.3W
73
8
172
1717
— .0100
5920
.6164
82
83
2.3W
73
8
174
1738
— .0070
5989
.6236
83
84
I.I W
73
7
175
1750
-0033
5985
.6235
84
85
0.0
73
8
175
1750
.0000
6024
. 6272
85
86
0.8E
73
7
175
1750
+ .0024
5985
.6235
86
87
2. lE
73
5
176
1758
4-0065
5942
.6197
87
88
3-3H
73
4
177
1766
+.0103
5937
.6195
88
89
4.2E
73
3
178
1775
+ .0130
5933
.6194
89
90
5-4E
73
3
178
1773
+.0167
5933
.6194
90
91
6. lE
73
4
182
1809
+ .0193
6104
.6370
91
92
5.2E
73
I
178
1773
-f.0162
5858
.6123
92
93
7.5E
72
9
183
1814
+.0240
5949
.6224
93
94
9-3E
72
7
184
1816
+.0298
5908
.6188
94
95
10. 1 E
72
6
187
1840
+•0327
5967
.6253
95
96
9-9H
72
5
187
1842
+ .0322
5932
. 6220
96
97
II. oE
72
4
186
1827
+ .0355
5863
.6151
97
98
II. 6E
72
I
191
1872
+. 0384
5913
.6215
98
99
12. 1 E
71
8
192
1878
+•0403
5841
.6148
99
100
12.7 E
71
6
194
1893
-f.0427
583:^.
.6145
100
lOI
13. 3 E
71
5
195
1897
-f.0448
5829
.6146
lOI
102
14. 1 E
71
3
197
1911
+.0481
5819
.6144
102
103
14. 4 E
71
2
197
1909
+ .0491
5786
.6113
103
104
15- 1 E
71
199
1920
+ .0517
5779
.6113
104
105
15. 4 E
70
7
201
1938
+ 0535
5741
.6082
105
106
15. 8 E
70
5
204
1962
+• 0555
5761
. 6112
106
107
170E
70
4
206
1969
+ .0602
5784
. 6141
107
108
17.1 E
70
I
206
1969
+.0606
5690
.6052
108
144
MAGNETIC TABLES AND CHARTS FOR 1905.
Table V. — The magnetic elements and magnetic components for each degree of latitude and longitude on
January j, 190^, for North America^ from if* N, to 49^ N. — Continued.
LATITUDE 43** N.—Continued.
Longitude W
D
I
H
X
Y
Z
F
Longitude W
109
17- 2 E
69.8
.209
. 1996
+.0619
5681
6053
109
110
17- 4 E
69.6
. 210
.2003
+ .0628
5647
6025
IIO
III
18. oE
69.4
. 211
. 2007
+ .0652
5613
5997
III
112
19.2 E
69.0
. 212
. 2C»I
+ .0697
5523
5915
112
113
18. 6 E
68.8
. 212
. 2010
4-0676
5465
5862
"3
114
19. oE
68.8
.213
.2015
+ .0694
5491
5889
114
"5
19- I E
68.6
•215
• 2032
+ .0703
5487
5893
115
116
18. 8 E
68.4
.216
. 2046
+ .0696
5456
5867
116
"7
19. oE
68.2
.217
.2053
+ .0707
5425
5844
117
118
19. 4 E
68. I
.218
.2056
+ .0724
5424
5845
118
119
19. 8 E
68.0
. 220
. 2070
-f.0746
5445
5872
119
120
21. I E
67.5
. 222
. 2071
+ 0799
.5359
5801
120
121.
20. E
67.2
. 222
.2087
+.0759
.5281
5730
121
122
20. 2 E
66.8
.224
. 2IOI
+ •0773
.5226
5685
122
123
20. I E
66.5
.225
.2113
4-0774
■5175 1
.5643
123
"4 .
19. 9 E
66.4
.226
.2124
+ .0768
.5173
5645
124
125
20. 3 E
66.3
.226
.2120
+ .0784
.5148
5623
125
126
20.7 E
66. I
•227
. 2122
+ .0801
.5123
5602
126
127
21. oE
65- 9
■227
.2120
+ .0813
.5076
5559
127
LATITUDE 44** N.
1
65
19. 4 W
73.6
167
1575
-0554 1
5675
•5915
65
66
18. 9 W
73-7
167
1580
0541
57II
•5950
66
67
18.0 w
74.0
166
1579
—
0513
5788
. 6022
67
68
i6. 9 W
74. I
165
1579
• —
0480
5793
. 6022
. 68
69
15- 8 W
74.1
164
1578
—
0446
5758
.5986
69
70
15. 6 W
74.2
163
1570
—
0438
5760
.5987
70
71
15. 3 W
74-4
162
1563
—
0428
5803
.6025
71
72
13. 5 W
74-5
163
1584
—
0380
5878
.6099
72
73
12. 8 W
74-5
163
1589
—
0362
5878
.6099
73
74
12. oW
74-7
160
1565
—
0333
5848
.6064
74
75
10. 6 W
74.8
159
1563
—
0293
5853
.6064
75
76
10. I W
• 74-9
161
1584
—
0282
5967
.6181
76
77
9. 2 W
74-9
163
1609
—
0261
6041
.6258
77
78
7.7W
•74-7
164
1625
—
0220
■5994
.6216
78
79
6.7W
74.7
163
1619
—
0191
5958
.6178
79
80
5.8W
74.8
163
1622
—
0165
6000
.6217
80
81
5.3 w
74-7
163
1623
—
0150
5958
.6178
81
82
4.4 w
74.6
164
1635
—
0126
5953
.6176
82
83
2.9W
74-7
165
1648
—
0084
6031
.6254
83
84
1.6W
74.6
166
1660
—
0046
6026
.6252
84
85
0.4W
74-7
166
1660
—
CX)I2
6067
. 6291
85
86
0.4E
74.6
167
1670
+
0012
6062
.6289
86
87
1.8E
74.3
169
1690
+
0052
6013
.6245
87
88
3.2E
74- I
169
1687
+
0095
5934
.6168
88
89
4.3E
74- I
171
1705
+
0128
6004
.6242
89
90
5.2E
74- I
171
1703
+
0156
6004
. 6242
90
91
5.7E
74.0
172
1711
+
0170
5998
.6240
91
92
6.3E
73-8
173
1720
+
0190
5955
.6200
92
93
6.9E
73-8
175
1738
+
0210
6024
.6272
93
94
8.5E
73.6
176
1741
+
0260
5980
•6234
94
95
8.8E
73-4
177
1749
+
0271 1
5937
.6195
95
96
9.6E
73.3
179
1765
+
0299 1
5966
.6229
96
97
10. 6 E
73-2
179
1760
+
0329 1
5928
.6193
97
98
II. 3E
72.9
182
1785
+
0357 1
5917
.6190
4 98
99
12. oE
72.7
184
1800
4-
0383 I
5908
.6188
99
100
12. 7 E
> 72.5
186
1815
+
0409
5900
.6186
100
lOI
13- 6 E
' 72.4
187
1818
+
0439
5894
.6184
lOI
102
14. 3 E
72.3
189
1831
-h
0467
5921
.6216
102
103
15. oE
72.0
191
1845
+
0495
5879
.6181
103
104
15. 3 E
71.8
193
1862
+
0510
5871
.6180
104
105
15. 7 E
71.6
195
1878
+
0528
5862
.6178
105
06
16. 4 E
71-3
196
1880
+
0553
5790
.6113
106
107
16. 9 E
71.2
197
1885
+
0573
5786
.6113
107
108
17. 6 E
71.0
199
1896
+
0601
5779
.6113
108
MAGNETIC ELEMENTS AND COMPONENTS,
145
Table V. — The magnetic elements and m^agnetic components for each degree of latitude and longitude on
January i, 190^, for North America, from 17° N. to 49° N. — Continued.
LATITUDE 44° N.— Continued.
Longitude W
D
I
H
I
X
Y
z
F
Longitude W
■
109
17. 9 E
70.7
202
1923
+ .0620
5769
6ii3
109
1 10
17. 9. E
70.6
200
1904
+ .0614
5680
6022
1 10
III
18. 4 E
70.3
200
1898
-f.0632
5586
5934
III
112
18.7 E
70. I
205
1941
+ .0658
5662
6023
112
"3
19. 4 E
69.9
205
1933
+.0681
5603
5966
113
114
19- 7 K
69.8
207
1948
-h.0698
5626
5995
114
115
19. 6 E
69.6
207
1950
+ .0693
5566
5939
115
116
19- 7 E
69- 3
208
1957
+ .0701.
5504
5884
116
117
20. I E
68.9
212
1991
+ 0729
5495
5889
"7
118
19. 7 s
68.7
213
2004
-f.0718
5463
5864
118
119
20. E
68.5
215
2021
+ •0735
5459
5865
119
120
21. 3E
68.2
215
2004
+ .0780
5375
5790
120
121
21. 3E
68.0
216
2013
+ .0784
5346 ,
5765
121
122
20. 8 E
67.6
218
2038
+ .0774
5289 1
5720
122
123
21. I E
67.2
219
2043
+ .0788
5210 1
5652
123
124
21. I E
67.2
219 '
2043
+ .0788
5210 !
5652
124
125
21. 2 E
67.2
220 1
2050
-f.0796
5234
5678
125
126
21.4 E
66.9
221 !
2058
-f.0807
5180 ,
5633
126
127
21. 6E
66.7
221 1
2055
DE 4!
4-0813
5132 i
1
5587
127
LATITU
;° N.
65
20. 8 W
74.4
161
1505
-0572
5767
5988
65
66
20. 2 W
74
5
160
1501
-0552
5770
5987
66
67
19. 2 W
74
7
159 i
1501
-0523
5811
6026
67
68
17. 9 w
74
8
158 1
1504
-.0485
5816
6026
68
69
17. 3 w
74
8
157
1499
-.0466
5779
5988
69
70
16.4 W
74
8
157
1506
-0443
5779
5988
70
71
16. 2 w
75
156
1498
-.0435
5822
6028
71
72
15. 6 W
75
I
157
1512
— .0422
5900
6106
72
73
I5-4VV
75
2
157 ;
1513
— .0418
5942
6147
73
74
15. 2 W
75
4
158 1
1525
-.0414
6066
6268
74
75
12.0 W
75
6
155 ,
1516
— .0322
6037
6233
75
76
10.8 W
75
6
154
1512
-.0288
5998
6192
76
77
9.8W
75
6
155
1527
— . 0264
6037
6233
77
78
8. 7 W
75
6
155
1531
- 0234
6037
6233
78
79
7.6W
75
5
'55
1536
— .0205
5994
6191
79
80
6.7 W
75
5
156
1549
-.0183
6033
6231
80
81
6.5 w
75
4
156
1551
— .0176
5989
6189-
81
82
5-7W
75
4 1
155
1542
-0153
5950
6149
82
83
3-6W
75
7
155
1547
— .0098
6081
6276
83
84
1.9 W
75
6
156
1558
— .0051
6076
6273
84
85
I. I W
75
4
157
1570
— .0030
6027
6228
85
86
0. 8 W
75
3
158
1580
— .0022
6023
6227
86
87
1.5E
75
2
160
1600
+.0042
6056
6264
87
88
'•7g
75
I 1
162
1618
+.0076
6088
6300
88
89
3-8E
75
2
162 1
1618
+.0107
6132
6342
89
•90
5.6E
75
162
1612
-h.0159
6046
6260
90
91
6.0E
74
8
165
1642
+.0173
6074
6293
91
92
6.5E
74
7
166
1650
+.0188
6067
6291
92
93
8. 2 E
74
6
166
1643
+.0237
6026
6252
93
94
. 9-'i
74
6
167
1648
-f.0264
6062
6289
94
95
9.3E
74
3
169 '
1668
-I-.0274
6013
6245
95
96
9 5E
74
I
172
1696
+.0284
6039
6278
96
97
10. 2 E
74
I
172
1692
-f . 0304
6039
6278
97
98
11..7 E
73
9
174 i
1703
+.0353
6029
6274
98
99
13- I E
73
6
176 1
1714
+.0400
5980
6234
99
100
13- I H
73
6
177 1
1724
+.0402
6014
6269
100
lOl
13. 8 E
73
4
179 ,
1738
+. 0428
6004
6265
lOI
102
14. 6 E
73
2
182 ;
1762
+• 0459
6028
6297
102
103
15-2 E
73
183 .
1766
+.0479
5986
6259
103
104
'5- 7?
72
6
185 1
1782
-f .0501
5903
6186
104
105
16. 4 E
72
4
190
1822
■f.0536
5989
6283
105
106
17. oE
72
2
189 ,
1807
+ 0552
5887
6182
106
107
17.5E
71
9
189 1
1803
-f.0569
5783
6084
107
53819—08 10
146
MAGNETIC TABLES AND CHARTS FOR 1905.
Table V. — The magnetic elements and magnetic components for each degree of latitude and longitude on
January i, 1905, for North America, from 17^ N. to 49° N. — Continued.
LATITUDE 45° N.— Continued.
Longitude W
108
109
no
III
112
113
114
115
l]6
117
118
XI9
120
121
122
123
124
126
127
18. oE
18. 5 E
18. 9 E
19- 4 E
19- 5 E
19.8 E
20. 3 E
20.2 E
20.3 E
20. 5 E
20.7 E
20. 9 E
20.8 E
21.0 E
22.0 E
21.7 E
21. 6E
21.7 E
22.0 E
22. 3 E
71.8
71.8
71
71-
71-
70.8
70- 5
70.3
70. 2
69.9
69- 5
69- 3
69. 2
69. I
68.8
68.0
68.2
68. I
67.9
67- 5
192
190
192
197
199
199
201
199
203
206
207
208
208
208
211
212
214
215
215
215
X
Y
z
P
Longitude W
. 1826
+ .0593
5841
6148
108
1 801
+ .0602
5780
6084
109
I8I6
+ .0622
5739
6052
no
1858
+ .0654
5786
6113
III
1877
+ .0665
5779
6113
112
1873
+ .0675
5715
6052
113
1885
+ .0697
5676
6022
114
1867
+ .0687
5558
5904
"5
1904
+ .0704
5639
5993
116
1930
+ .0721
5630
5995
117
1935-
4-. 0731
5537
5910
118
1943
+ 0743
5504
5884
119
1945
+•0738
5477
5857
120
1943
4-. 0745
5448
5830
121
1956
+.0791
5440
5834
122
1969
+.0784
5247
5658
123
1990
-f.0788
5350
5763
124
1997
+.0796
5349
5764
125
1993
+.0806
5295
5715
126
.1989
-f.0815
5190
5618
127
LATITUDE 46° N.
!
64
22. 9 W
74.8
153
1409
-.0595
.5632
..5835
64
65
22. 3 W
75-
153
I4I5
-.0580
• 5710
•5912
65
66
21.4 w
75-2
152
I4I5
-0555
•5753
•5951
66
67
20. 3 W
75-4
151
I4I6
-0524
•5797
•5990
67
68
19. 4 W
75-5
150
I4I4
-.0498
.5800
•5991
68
69
18. 6 W
75-5
150
1422
-.0478
.5800
•5991
69
70
17. 9 W
75-5
151
1438
—.0464
.5839
.6031
70
71
17-4W
75.6
151
I44I
-0451
.5881
. 6072
71
72 •
16.9 W
75-8
151
1445
-0439
.5968
.6156
72
73
15. 9 W
76.1
148 1
1424
— .0406
.5981
.6161
73
74
15. 3 W
76.2
148.
1428
-.0391
.6025
. 6204
74
75
14. 4 W
76.2
147
1424
-.0366
.5984
.6162
75
76
12. 4W
76.2
147
1436
—.0316
.5984
.6162
76
77
10.9 W
76.3
147
1444
-.0278
.6030
. 6206
77
78
9.5W
76.3
147
1449
-0243
.6030
.6206
78
79
8.6W
76.2
148
1464
—.0222
.6025
.6204
79
80
7.9W
76.1
149
1477
— . 0204
. 6021
.6203
80
81
7.1 W
76.2
150
I48S
—.0186
.6106
.6288
81
82
5.0W
76.3
147
1464
—.0128
.603c
.6206
82
83
4.5 w
76.4
147 ,
1466
—.0115
.6077
.6252
83
84
3.8W
76.3
148 1
1477
— .0098
. 6071
.6249
84
85
i.oW
76.1
149 ,
1490
—.0025
. 6021
.6203
85
86
0.3W
76.0
150
1500
—.0008
.6016
. 6201
86
87
I.I E
76.0
152 ;
1520
-f .0029
.6097
.6284
87
88
2.3E
76.0
151
1508
-1-.0060
.6057
. 6242
8B
89
2.9E
76.1
154
1538
+.0079
.6223
. 641 1
89
90
3.7E
75.8
153
1527
+.0099
.6047
.6238
90
91
5.1E
75.7
158 1
1574
+.0141
.6198
•6397
91
92
7.0E
75-7
160
1589
+.0195
.6277
.6478
92
93
7.7E
75-6
158 '
1566
+.0212
.6154
•6353
93
94
8.5E
75-4 1
159 !
1573
+.0235
.6104
.6308
94
95
9.6E
75-3 1
161 .
1587
+.0269
.6137
.6345
95
96
10.7 E
75.0
164 i
I6I2
+.0305
. 6120
•6337
96
97
II. 4E
74-9
163
1597
+ 0323
. 6041
.6258
97
98
II. 7E
74.8
166 ,
1625
+.0337
.6110
•6331
98
99
12. 6E
74.6
168 1
1640
+.0366
.6098
■6327
99
100
13. 7 E
74-5
168
1633
-f . 0398
.6058
.6287
100
lOI
14.8 E
74.2
170 ;
1644
+.0434
.6008
.6244
lOI
102
15. 5 E
73-9
174 i
1677
+.0465
. 6029
.6274
102
103
16. oE
73-7
175 :
1682
+.0483
• 5985
■6235
103
104
16. 3 E
73.5
178
1709
-f .0500
. 6009
.6267
104
105
16. 6 E
73.3
181
1734
+.0518
•6033
.6299
105
106
17.3E
73-
180
I7I9
+ 0535
.5888
■ 6156
106
MAGNETIC ELEMENTS AND COMPONENTS.
147
Table V. — The magnetic elements and m>a,gnetic components for each degree of latitude and longitvde on
Janvary j, 190^, for North America, from 77° N. to 49° iV.— Continued.
LATITUDE 46^ N.— Continued.
Loncitude W
X07
108
109
110
III
112
"3
114
115
116
117
118
119
120
121
122
"3
124
125
126
127
128
18. 3 E
18. 4 E
18. 3 E
19. 2 E
19. 6 E
20. 2 E
20.7 E
21. 1 E
21.2 E
21. 4E
21. 5E
21. 5E
21. 8E
21. 8E
22.0 E
21. 6E
22.0 E
22. 1 E
22. 3 E
22. 5 E
22. 8 E
23- oE
72.8
72.7
72. 6
72.3
72. I
71.8
71.6
71.2
70.9
70.9
70.7
70.4
70. 2
70.0
69.8
69.7
69.4
68.9
69.0
68.8
68.5
68.2
183
185
185
187
189
189
192
193
194
196
198
199
201
203
203
204
200
208
208
209
209
209
1737
1756
1756
1765
1780
1773
1795
1801
1808
1825
1841
1851
1865
1884
1882
1897
1854
1928
1924
193 1
1927
1925
+.0575
+.0585
+■0581
+ .0615
-f.0633
-f.0652
-f.0678
+ .0695
+ .0702
+ •0715
+ .0727
+.0730
+.0746
+ 0753
4-0761
+ 0751
•f.0750
+ .0782
+ .0788
+.0800
-I-.0811
-f.0817
•59"
•5940
.5903
•5859
.5851
.5749
.5772
.5668
•5603
.5660
•5655
.5588
.5584
.5576
.5518
•5514
.5320
.5391
.5418
■5388
•5307
■5225
.6189
. 6222
.6186
.6150
.6150
.6052
.6083
.5989
•5929
•5990
•5991
•5932
.5934
•5936
•5879
.5879
.5684
•5778
.5803
•5779
•5702
.5628
Longitude W
107
108
109
IIO
III
112
113
114
115
116
"7
1x8
119
120
121
122
123
124
125
126
127
128
LATITUDE 47° N.
64
24. 6 W
75.4
146
1327
— .0607
•5605
•5792
64
65
23. 6 W
75^ 7
145
1328
-.0580
.5688
.5871
65
66
22. 7 W
75^9
144
1329
-•0556
•5733
•59"
66
67
21.8 W
76.1
143
1327
-•0531
•5779
•5953
67
68
21. oW
76.2
143
1336
—.0512
.5822
.5995
68
69
20.2 W
76.2
,44
1351
— 0497
.5862
.6036
69
70
19. 4 w
76.2
144
1358
-.0478
.5862
.6036
70
71
18. 3 w
76.3
144
1367
-.0452
.5907
.6080
71
72
17. 3 W
76.5
144
1375
—.0428
.5998
.6169
72
73
16. 5 w
76.7
142
1362
-.0403
.6007
.6173
73
74
15. 9 w
76.8
141
1356
—.0386
. 6012
.6174
74
75
15.2 W
76.9
140
135 1
-.0367
.6016
.6177
75
76
12. 8 W
77.0
140
1365
—.0311
.6063
. .6223
76
77
II. 3W
77.0
.140 .
1373
-.0274
.6063
.6223
77
78
10. I W
77.0
140
1378
-.0245
.6063
.6223
78
79
9.3W
76.9
.141
1392
—.0228
.6059
.6221
79
80
8.4 w
76.8
.142
1404
—.0207
•6055
.6218
80
81
7.4W
76.9
.142
1409
-.0183
.6102
.6265
81
82
6.4 w
77.0
.141
1402
-•0157
.6107
.6267
82
83
5.5W
77.2
.139
1383
-.0133
. 6119
.6274
83
84
4.2 w
77- I
.139
1386
—.0101
.6069
.6226
84
85
2.3W
76.9
.142
.1419
-.0057
.6102
.6265
85
86
0.5W
76.9
.144
.1440
—.0013
.6188
.6353
86
87
0.7E
76.9
.144
1440
+.0017
.6188
•6353
87
88
i.oE
76.8
•145
.1450
+.0025
.6183
.6350
88
89
2. lE
76.8
.146
•1459
+.0054
.6225
.6393
89
90
3.8E
76.8
.150
.1497
+•0099
.6396
.6568
90
91
5-9E
76.7
.148
1473
-f.0152
.6260
.6434
91
92
8. 2E
76.7
.148
.1465
+.0212
.6260
•6434
92
93
8.6E
76.4
• 150
.1484
+.0225
.6201
.6380
93
94
9. I E
76.2
•151
. 1490
+.0239
.6147
•6330
94
95
10. I E
76.0
.152
.1496
+.0266
.6097
.6284
95
96
10. oE
75.8
.156
•1537
+.0271
.6165
.6360
96
97
II. 6E
75.7
.156
.1529
+.0314
. 6120
.6316
97
98
12. 4E
75.6
•157
■1534
+.0338
.6115
•6313
98
99
13. oE
75-4
.160
1558
+.0360
.6142
•6347
99
100
14. 4 E
75-2
. 161
. 1560
+.0401
.6094
.6303
100
lOI
15. 3 E
74-9
.162
•1563
+.0428
.6004
.6219
lOI
102
16. oE
74.6
.165
1586
+.0455
•5990
.6214
102
103
16. 5 E
74.5
.167
. 1602
+•0474
. 6022
.6249
103
104
16. 8 E
74^4
.169
. 1617
-f.0488
•6054
.6285
104
148
MAGNETIC TABLES AND CHARTS FOR 1905.
Table V. — The magnetic elements and magnetic components for each degree of latitude and longitude on
January j, 7905, for North America^ from 17"^ N. to 49° N, — Continued.
LATITUDE 47** N.— Continued.
Longitude W
D
I
105
17- I E
74-2
106
17. 8 E
74.0
107
18. 5 E
73-8
108
19- 2 E
73.5
109
19- 5 E
73-2
110
19- 7 E
73-
III
19- 8 E
72.7
112
20. oE
72.5
113
21. oE
72.3
114
21. 4E
72.0
"5
21. 6E
71.8
116
21. 8E
717
"7
22. 3 E
717
118
22.3 E
71.2
119
22. 4 E
71.0
120
22. 4 E
70.8
121
22.3 E
70. 6
122
22. 4E
70.4
123
22. 8 E
70.3
124
22.7 E
70. I
125
22. 8 E
69.9
126
23. 2 E
69.7
127
23- 6 E
69.5
128
23. 8 E
69.2
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
lOI
102
26. 2 W
76.2
25. 2 W
76
3
24. 2 W
76
5
23. 2 W
76
6
22. 4 W
76
8
21.6 W
76
9
20. 9 W
77
I
20.0 W
77
3
18.7 W
77
4
17. 7 W
77
5
16.7 w
77
5
15. 7 W
77
6
14. 2 W
77
7
12. 3 w
77
7
II. oW
77
7
10. oW
77
7
8.9 W
77
7
7.9 w
77
7
6.9 w
77
7
5.9W
77
9
5-2W
77
8
3.2 W
77
8
1.7 w
77
8
0. 7 E
77
8
2.2E
77
7
2.9E
77
6
4.3 E
77
6
5.7E
77
5
7.0E
77
4
7.7E
77
2
8.0E
77
8.7E
76
8
10. 2 E
76
6
II. 5 E
76
5
12.5 E
76
3
13. 4 E
76
14. I E
75
9
15-2 E
75
8
16. oE
75
6
170
171
177
178
178
180
183
183
185
187
188
189
191
194
193
196
197
197
198
200
201
203
204
204
1625
1628
1678
1680
1679
1694
1722
1720
1728
I74I
1748
1754
1767
1794
1785
I8I3
1822
1822
1826
1846
1853
1866
1869
1867
+.0500
+.0523
+.0561
+.0586
+.0595
-f.0607
+.0620
+.0626
+.0662
+.0683
+. 0692
+.0701
+.0724
4-. 0735
+ 0735
-f.0747
+ 0747
+ 0751
+.0768
+.0772
-I-.0780
+.0800
+.0816
-h.0824
Longitude W
6008
6244
105
5963
6204
106
6092
6344
107
6009
6267
10^
5895
6159
109
5888
61.S6
no
5876
6154
III
5805
6087
112
5796
608,5
113
5756
6051
114
5719
6020
115
5715
6020
n6
5776
6083
117
5698
6020
118
5605
5929
119
5629
5960
120
5595
5932
121
5532
5873
122
5530
5875
123
5524
5876
• 124
5493
5849
125
5487
5850
126
5457
5824
127
5371
5745
128
LATITUDE 48° N.
• 139 1
1247
-.0614
138
1249
-.0588
136
1240
-.0558
136
1250
-0536
136
1258
—.0518
140
1302
-0515
139
1298
-.0496
136
1278
-.0465
137
1297
-.0440
135
1287
—.0410
134
1284
-.0385
133
1281
—.0360
133
1289
—.0326
133
1299
—.0283
133
1306
-.0254
134 !
1320
-0233
134
1324
^.0208
134
1328
-.0184
132
1311
-.0158
131
1303
-0135
132
1315
—.0120
134
1337
-0075
134
1340
—.0040
135
1350
+.0016
136
1359
+.0052
136
1359
+.0069
141
1406
-I-.0106
141
1403
4-0140
142
1410
+ 0173
139
1377
+.0186
142
1406
+.0197
145
1433
-f-.02I9
148
1456
+.0262
148
1450
+.0295
150
1464
+.0324
153
1489
+ 0355
154
1494
+.0376
154
i486
+.0403
157
1509
+.0433
5659
.5827
64
5661
.5826
65
5664
.5826
66
5709
.5868
67
5799
■5955
68
6016
.6177
69
6069
.6226
70
6034
.6187
71
6129
.6280
72
6090
•6237
73
6045
. 6191
74
6049
.6194
75
6099
.6243
76
6099
.6243
77
6099
•6243
78
6145
.6290
79
6145
.6290
80
6145
. 6290
81
6054
. 6196
82
6in
.6250
83
6105
.6246
84
6198
.6341
85
6198
•6341
86
6244
.6388
87
6237
.6384
88
6185
•6334
89
6413
.6566
90
6361
•6514
. 91
6353
.6509
92
6119
.6274
93
6150
■ 6312
94
6183
.6350
95
6213
.6386
96
6164
.6340
97
6153
•6333
98
6137
.6325
99
6131
.6322
100
6086
.6279
lOI
6116
.6313
102
MAGNETIC ELEMENTS AND COMPONENTS.
149
Table V. — The magnetic elements and magnetic components for each degree of latitude and longitude on
January j, 1903, for North America, from 17° N. to 49° TV.— Continued.
LATITUDE 4&° N.— Continued.
Longitude W
D
I
H
X
Y
z
F
Longitude W
103
16. 7 E
75-4
• 159
1523
+.0456
.6104
.6308
103
104
I7-4E
75.2
. 160
1526
+ .0478
.6056
.6264
104
105
18. I £
75. I
.160
1522
+ .0498
.6013
. 6222
105
106
18. 7 E
74.9
.163
1544
4-. 0523 '
. 6041
.6258
106
107
19- 3 g
74-7
.167
1576
+•0553
.6104
.6329
107
108
19. 8 E
74-3
.168
1581
+.0570
• 5977
.6208
108
109
20.4 E
74.0
.170
1593
:f . 0593
• .5928
.6168
109
110
21. oE
73.8
.172
1606
-f.0616
.5920
.6164
1 10
III
21. 3E
73-5
.174
1622
+.0632
• 5874
. 6127
III
112
21. 4E
73-3
.176
1639
+.0642
.5866
.6125
112
113
21. 4E
73.0
.180
1676
. +.0657
.5888
.6156
"3
114
22.0 E
72.8
.181
1678
+.0679
.5846
. 6121
114
"5
22. 6 E
72.6
.182
1680
+.0699
.5808
.6090
"5
116
22.5 E
72.5
.183
1691
+.0701
.5805
.6087
116
"7
22. 8 E
72.4
. 186
1715
-I-.0722
.5863
.6151
"7
118
22.7 E
72.2
.187
1726
-f.0722
.5825
. 6117
118
119
22.9 E
71-9
.186
1713
+.0724
.5692
•5987
119
120
23. 1 E
715
. 188
1730
+ 0737
.5619
•5926
120
121
22.9 E
71.2
.191
1759
4-.0743
.5610
•5927
121
122
23.2 E
71.2
.191
1755
+ .0753
.5610
.5927
122
123
23. 6 E
71.0
• 193
1768
+.0772
.5605
•5929
123
124
23. 7 E
70.9
•194 5
1777
+ .0780
.5603
•5929
124
125
23. 7 E
70.7
. 194 1
1777
4-. 0780
■5541
.5870
125
126
24. 5 H
70.5
.196
1784
-h.0813
•5535
.5872
126
127
24. 9 E
70.3
.197
1787
-f . 0829
•5502
.5845
127
128
24. 7 E
70.2
.198
1800
+ .0828
.5500
.5845
128
LATITUDE 49** N.
65
26. W
76.8
66
25. 3 W
77.0
67
24. 7 w
77-4
68
23. 8 W
77-7
69
23.0VV
78.0
70
22.2 VV
78.1
71
21.4 w
78.1
72
20. 4 W
78.1
73
19. oW
78.1
74
17. 8 W
78.2
75
16.6 VV
78.2
76
15- 3 W
78.2
77
13- 8 W
78-3
78
12. 4 W
78.3
79
10.9.W
78.3
80
9.7W
78.3
81
8.5W
78.3
82
7.4W
78.4
83
6.3W
■78.5
84
4.7W
78.6
85
3.6W
78.7
86
2.6\V
78.8
87 -
0. 5 w
78.7
88
1.8E
78.6
89
30E
78.4
90
4-2 E
78.1
91
5-7E
78.2
92
6.6E
78.1
93
7-3E
77-8
94
8.7E
77.6
95
10. I E
77-5
96
10. 6 E
77-4
97
II. 4E
77-4
98
13. I E
77.2
99
14- 3 E
77.0
ICX)
15. 3 E
76.8
lOI
16. 2 E
76.6
131
129
127
128
132
129
127
128
127
126
125
125
125
125
126
126
125
124
123
123 i
124
126
127 I
128
129
131
133
134
136
138
139
139
141
H5
146
147
1178
1 166
"54
1171
, 1216
"95
. 1182
.1199
. I20I
. 1200 I
.1198 !
. 1206 ,
. I214
. I22I
■ 1237
. 1242 ;
• 1236 I
. 1230 I
.1223
. 1226
.1238 '
. 1249 '
. 1260
. 1270 :
• 1279
. 1286
• 1303
. 1321
• 1329
. 1344
. 1358
.1366
• 1362
• 1373
■ 1405
. 1409
. 1411
-.0574
-0551
-0531
-0517
—.0516
—.0488
— . 0464
-.0447
-.0414
-.0386
-0358
-.0330
-.0299
—.0269
-.0238
—.0212
-.0185
—.0160
-0135
—.0101
—.0078
—.0056
—.0011
+.0039
4". 0067
-I-.0094
+.0130
+ 0153
+.0170
+.0205
-f.0242
4-0256 i
4-. 0275 I
4-0320 I
+.0358 I
+•0385 I
4-0410 I
.5586
.5587
.5681
.5870
.6211
. 6121
. 6026
.6074
. 6026
.6032
•5984
.5984
.6036
.6036
.6085
.6085
.6036
. 6041
.6045
. 6100
. 6206
.6312
.6306
.6298
.6236
. 6121
. 6271
.6311
.6198
.6185
. 6225
. 6219
. 6219
. 6207
.6280
.6225
. 6171
•5736
•5734
.5822
.6008
.6349
.6256
. 6160
.6208
. 6160
.6161
. 6112
. 6112
. 6164
. 6164
.6213
.6213
. 6164
. 6167
. 6170
.6223
.6328
•6435
.6430
.6425
■6365
.6256
. 6406
.6450
.6341
•6334
.6376
•6372
.6372
.6365
.6445
• 6393
.6343
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
I50
MAGNETIC TABLES AND CHARTS FOR 1905.
Table V. — The magnetic elements and magnetic components for each degree of latittuie and longitude on
January i, 1903 y for North America, from ij^ N. to 49° N, — Continued.
LATITUDE 49° N.— Continued.
Longitude W
D
I H
1
i
1
X
' i
i
F
_ .
Longitude W
102
16. 9 E
76.4
149
1426
+ 0434
6160 1
6337
102
103
17- 7 E
76.1
150
1430
+■0456
6062
6244
103
104
18.2 E
75.9 .
151
M34
-f-0471
6011
6199
104
105
18. 7 E
75.8
153
1449
+.0491
6047
6238
105
106
19. 3 E
. 75.6
156
1473
-h.0516
6076 1
6273
106
107
19. 8 E
75.4
158
1487
+ .0536
6066
6268
107
108
20. 3 E
75. I
162
1520
+ .0562
6088
6300
108
109
20.5 E
74.8
164
1537
+ .0574
6037 ,
6255
109
IIO
21. 1 E
74-5
165
1539
+0594 1
5950 '
6174
IIO
III
22. 1 E
74-3
167
1548
-f.0628
5942 1
6171
III
112
22.5 E
74.0
170 1
1571
+ .0651
5928
6168
112
113
23. oE
73.8
173
1592
+ .0676
5955
6200
113
114
23. 5 E
73-6
174
1596
+ .0694
5913
6163
114
115
23- 9 E
73-5
175
1600
+ .0709
5908 !
6162
"5
116
23- 6 E
73-3
176
1612
+ .0704
5866
6125
116
"7
23. 6 E
73-
178 i
1630
+.0712 1
5822
6088
"7
118
23- 3 E
72.8
179
1643
+.0709
5782
6054
118
119
23- 5 E
72.5
180 1
165 1
+ .0718
5710 ■
5987
119
120
24.2 E
72.3
182
1660
-f.0746
5702 1
5986
120
121
24. oE
72.1
183
1673
+ 0745
5666
5955
121
122
24. 1 E
72.1
187 1
1707
+ 0763
5790
6085
122
123
24. 2 E
71.8
187
1705
+ .0767 1
5689
5988
123
124
25. oE
71.6
187
1694
+ 0791
5621
5924
124
125
26. oE
714
187 1
1681
+ .0819
5556
5862
125
126
26. 4 E
71.2
189 1
1693
+ .0841 1
5551
5865
126
127
26. oE
71.0
191 i
.1717
+ .0837 ,
5547
5868
127
128
25. 6 E
70.8
.9.|
1732
+ .0829 1
•5514
5839
128
MAGNETIC CHARXS.
151
MAGNETIC CHARTS.
Methods of constrtcction.
Charts 1,2, and 3 contain, respectively, the " Lines of Equal Magnetic Declination and of Equal
Annual Change in the United States for 1905,'"* the "Lines of Equal Magnetic Inclination and of
Equal Annual Change in the United States for 1905," and the "Lines of Equal Horizontal Intensity
and of Equal Annual Change in the United States for 1905." The method used in the construction
of these charts was the same for each, viz, the reduced values for 1905.0 as given in Table I were
plotted on a base map of about four times the size of the charts. Next the lines were drawn to
conform as strictly as- possible with the plotted results. At times it happened, of course, that
even the scale used was not sufficient to permit showing all the local irregularities. The endeavor
was made, however, to indicate in some manner, at least, these irregularities. For example, the
line of no magnetic declination or agonic line, besides exhibiting many a twist and turn, has some
detached ovals in Ohio. Still more numerous observations would undoubtedly introduce more
of these twists and turns, but of course that is no reason why we should not portray the actual
and natural facts as far as the present observations admit. When it comes to constructing the
^en^o/isomagnetic lines for the entire globe, then, some smoothing or generalization of the disturbed
lines over land areas will be desirable and necessary.
A discussion of the many interesting features exhibited by these charts can not be undertaken
here. One can not fail to be impressed by the manifold irregularities shown by the lines. Increased
knowledge teaches that instead of the irregularities being abnormal feature^, they are in truth the
normal ones and what may be expected in any attempt to give an accurate portrayal of the distribu-
tion of the Earth's magnetic forces over land areas. Perfectly regular or smoothly flowing lines are
either conventional ones or are based upon too few observations to admit of showing "irregularities."
Having thus drawn the isomagnetic lines for the three magnetic elements commonly observed,
the declinations and inclinations were next scaled to the nearest tenth of a degree , with the aid of
the constructed lines, for each degree of latitude and longitude for the entire area involved; like-
wise the horizontal intensities were scaled to the nearest third decimal C. G. S. unit for the same
points of intersection of the parallels and meridians 1° apart. With the aid of these data the
vertical intensity and the total intensity were computed, and these in turn were plotted and the
"Lines of Equal Vertical Intensity in the United States for 1905" (Chart 4) and the "Lines of Equal
Total Intensity in the United States for 1905" (Chart 5) were constructed to conform as closely as
possible with the plotted data. This course was adopted as sufficing for the purpose rather than
to undertake the great labor involved in working directly with the three observed elements given
in Table I. For other purposes, moreover, these quantities for each degree of latitude and longitude
are precisely what are wanted ; hence a twofold purpose was served. Thus in the analytical discus-
sion of the magnetic forces of the United States the two horizontal rectangular components of the
force (X toward the geographic north and Y toward the geographic east) are required, and these
in turn were computed from the data referred to above. As the charts for the two latter components
are required chiefly for this discussion, they are not given in the present publication in order not to
unduly increase the number of inserts.
"The Magnetic Meridians of the United States for 1905" (Chart 6), were constructed with the
view of showing directly the actual bearing or direction assumed by a compass needle, and have
« The first edition of the isogonic chart for 1905 was published in C. & G. S. Report for 1906, Appendix No. 4:
Distribution of the Magnetic Declination in the United States for January i, 1905, with isogonic chart and secular
change tables, by L. A. Bauer. In the present edition some improvements have been made owing to the acquisition
of additional material.
153
154 MAGNETIC TABLES AND CHARTS FOR 1905.
therefore more physical reality than the "lines of equal values," which are simply a convenient,
graphical form of exhibiting tabular results. The "magnetic meridians*' are defined as the lines
which will be traced out on the Earth's surface by ever following the precise direction pointed out
by the north end of the compass needle. They were constructed directly from the "Lines of Equal
Magnetic Declination" (Chart i) by Mr. R. L. Paris, the present Inspector of Magnetic work, as
follows :
"The construction of the first magnetic meridian on the chart was begun on the meridian line
of 80° west longitude and at latitude 39°. At this point the angle of magnetic declination corre-
sponding to latitude 39° 30', where it is intersected by the magnetic meridian, was laid off from the
true meridian by a protractor, and the line then drawn from parallel 39° to 40°, making the said
angle with the true meridian. Where the line so drawn intersected the parallel of 40° the line was
continued to parallel 41°, making an angle with the true meridian equal to the magnetic declination
at 40° 30' (as explained) , and so on to the northern limit of the chart. By a similar operation the
line was continued below parallel 39° to the southern limit of the chart. From this it will be seen
that the length of each step for which a new direction was taken up amounted to about 1° of latitude
or about 70 statute miles, and also the angle laid off at each step was the average declination for
the entire length of the step, each step on the scale used being approximately 16 mm. The interval
between the magnetic meridians was arbitrarily chosen and is equal to 3° of longitude measured on
parallel 39° of latitude. Hence they are equidistant from each other by 3° longitude where they
cross the 39° parallel of latitude.
"By the methods pursued the magnetic meridians have been made to accord as closely with
the actual facts as the mechanical operation of laying off the angles with a protractor will admit,
or, in other words, within the limits of accuracy of the mechanical construction of the lines."
LIST OF PUBLICATIONS OF THE COAST AND GEODETIC SURVEY (EXCEPT MAPS
AND CHARTS), AUGUST i TO NOVEMBER 15, 1908.
This list supplements the "Reprint of the List and catalogue of the publications of the United
States Coast and geodetic survey, 1816-1902. With Supplement, January, 1903, to August, 1908."
The Reprint and Supplement, and all of the publications listed here, except Coast pilots, and Tide
tables, which are sold at the cost of paper and printing, may be obtained free of charge upon
application to the Superintendent of the Coast and geodetic survey, Washington, D. C.
Separately issued publications.
These are papers that have been published on a variety of professional, scientific, bibliograph-
ical, or administrative subjects in separate form and without serial number.
1908. Supplement to the List and catalogue of the publications of the United States Coast and
geodetic survey, 1816-1902. January, 1903, to August, 1908. By R. M. Brown.
44 pp.
List and catalogue of the publications issued by the United States Coast and geodetic
survey, 181 6-1 902. Reprint, with Supplement January, 1903, to August, 1908.
By E. L. Burchard and R. M. Brown. 237, 44 pp.
Survey of the oyster bars, Somerset county, Maryland. Description of boundaries and
landmarks, and report of the work of United States Coast and geodetic survey in
cooperation with United States Bureau of fisheries, and Maryland Shell fish Com-
mission. By C. C. Yates. 118 pp. Map.
General instructions for the field work of the Coast and geodetic survey. 127 pp.
21 figs.
Coast pilots.
These are a series of volumes covering the continental coasts of the United States, Porto Rico,
and a portion of Alaska, containing descriptions of the coast and harbors, sailing directions, and
general information, etc., for the use of mariners. They are corrected to date of issue as nearly as
practicable, and new editions are issued from time to time.
Supplement to the third edition of the United States Coast pilot. Atlantic coast. Part V.
From New York to Chesapeake bay entrance, August 17, 1908. 10 pp.
Supplement to the second edition of the United States Coast pilot. Atlantic coast. Parts
I-II. From the St. Croix river to Cape Ann, September 18, 1908. 15 pp.
Supplement to the first edition of the United States Coast pilot. Pacific coast. California,
Oregon, and Washington, October 2, 1908. 15 pp.
Supplement to the third edition of the United States Coast pilot. Atlantic coast. Part VI.
Chesapeake bay and tributaries, October 16, 1908. 6 pp.
Notices to Mariners.
These contain corrections that should be applied to charts to keep them up to date. Com-
mencing with January 3, 1908, the monthly Notice to Mariners issued in Washington was, by direc-
tion of the Secretary of Commerce and labor, consolidated with and made a part of the weekly
Notice to Mariners issued by the Light-House board, and hence, commencing with January i, 1908,
was discontinued as a publication of the survey.
Philippine Islands. Notice to mariners. 1908. Nos. 6-10. 1908.
Chart catalogues.
The Catalogue of charts, coast pilots, and tide tables contains lists of the latest coast pilots, tide
tables, sailing directions, miscellaneous maps and plans, and charts issued by the Survey. New
editions are issued whenever necessary. Diagrams oppo§iTe each page show the limits of each chart.
A catalogue of charts, sailing directions, and tide tables for the Philippine islands is issued as a
separate publication. New editions are issued whenever necessary.
Catalogue of charts, coast pilots, and tide tables. 1908. 231 pp. 1908.
Catalogue of charts, sailing directions, and tide tables of the Philippine islands. 1908. 20 pp.
1908.
FOB LIBBAB7 CATALOGITE CABDS.
U. S. Coast and geodetic survey.
Separately issued publications. 1908.
United States Magnetic tables and magnetic charts for 1905. By h. A.
Bauer, inspector of gnvtatlpK work. Washington: Government printing
office. 1908. Magtt6tio
154 PP- 7 charts, i diag. 30*".
Title preceded by Commerce and labor and Survey heading. O. II. Tittmann
superintendent.
Bauer, Louis Agricola.
United States Magnetic tables and magnetic charts for 1905. By L. A.
Bauer, inspector of magnetic work. Washington: Government printing
office. 1908.
154 PP- 7 charts, i diag. 30««>. (U. S. Coast and geodetic survey. Sepa-
rately issued publication. 1908.)
Title preceded by Commerce and labor and Survey heading. O. H. Tittmann,
superintendent.
United States Magnetic tables and magnetic charts for 1905. By L A.
Bauer, inspector of (j|iai«liii» work. Washington : Government printing
office. 1908. BUfACtiX)
154 PP< 7 charts, i diag. (U. S. Coast and geodetic survey. Separately
issued publication. 1908.)
Title preceded by Commerce and labor and Survey heading. O. H. Tittmann,
superintendent.
SUPS FOB LIST AND CATALOGUE.
UST ENTRY.
1908, United States Map^netic tables and magnetic charts for 1905. By L. A.
Bauer, inspector of pMiali^svork. Washington: Government print-
ing office. 1908. BUgfietio
154 pp. 7 charts, i diag. 30*"".
Title preceded by Commerce and labor and Survey heading. O. H. Tittmann,
superintendent.
CATALOGUB ENTRIES.
Magnetic Tables.
Bauer, L. A. United States Magnetic tables and magnetic charts for 1905.
U. S. Coast and geodetic survey. Sep. pub. (1908.)
Magnetic Charts.
Bauer, L. A. United States Magnetic tables and magnetic charts for 1905.
U. S. Coast and geodetic survey' Sep. pub. (1908.)
Bauer, Louis Agricola.
United States Magnetic tables and magnetic charts for 1905. U. S. Coast
and geodetic survey. Sep. pub. (1908.)
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